https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.12

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cb222aed03d798fc074be55e59d9a112338ee784

https://github.com/torvalds/linux/commit/cb222aed03d798fc074be55e59d9a112338ee784

[debian-lts-announce] 20200609 [SECURITY] [DLA 2241-1] linux security update

[debian-lts-announce] 20200610 [SECURITY] [DLA 2241-2] linux security update

https://security.netapp.com/advisory/ntap-20200430-0004/

The remote NewStart CGSL host, running version MAIN 6.02, has kernel packages installed that are affected by multiple vulnerabilities:

  - An issue was discovered in the Linux kernel before 5.2.3. An out of bounds access exists in the function     hclge_tm_schd_mode_vnet_base_cfg in the file drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c.
    (CVE-2019-15925)

  - A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c in the Linux kernel     through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-128c66429247.
    (CVE-2019-18808)

  - ** DISPUTED ** A memory leak in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c     in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by     triggering ida_simple_get() failure, aka CID-4aa7afb0ee20. NOTE: third parties dispute the relevance of     this because an attacker cannot realistically control this failure at probe time. (CVE-2019-19046)

  - In the Linux kernel before 5.2, a setxattr operation, after a mount of a crafted ext4 image, can cause a     slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when     a large old_size value is used in a memset call, aka CID-345c0dbf3a30. (CVE-2019-19319)

  - An out-of-bounds memory write issue was found in the Linux Kernel, version 3.13 through 5.4, in the way     the Linux kernel's KVM hypervisor handled the 'KVM_GET_EMULATED_CPUID' ioctl(2) request to get CPUID     features emulated by the KVM hypervisor. A user or process able to access the '/dev/kvm' device could use     this flaw to crash the system, resulting in a denial of service. (CVE-2019-19332)

  - In the Linux kernel before 5.3.12, there is a use-after-free bug that can be caused by a malicious USB     device in the drivers/input/ff-memless.c driver, aka CID-fa3a5a1880c9. (CVE-2019-19524)

  - In the Linux kernel before 5.2.10, there is a race condition bug that can be caused by a malicious USB     device in the USB character device driver layer, aka CID-303911cfc5b9. This affects     drivers/usb/core/file.c. (CVE-2019-19537)

  - In the Linux kernel before 5.1.6, there is a use-after-free in serial_ir_init_module() in     drivers/media/rc/serial_ir.c. (CVE-2019-19543)

  - In the Linux kernel before 5.4.12, drivers/input/input.c has out-of-bounds writes via a crafted keycode     table, as demonstrated by input_set_keycode, aka CID-cb222aed03d7. (CVE-2019-20636)

  - In the Android kernel in the video driver there is a use after free due to a race condition. This could     lead to local escalation of privilege with no additional execution privileges needed. User interaction is     not needed for exploitation. (CVE-2019-9458)

  - A flaw was found in the Linux kernel's implementation of Userspace core dumps. This flaw allows an     attacker with a local account to crash a trivial program and exfiltrate private kernel data.
    (CVE-2020-10732)

  - A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it     incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly     only validate the first netlink message in the skb and allow or deny the rest of the messages within the     skb with the granted permission without further processing. (CVE-2020-10751)

  - ** DISPUTED ** An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c     has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing,     aka CID-aa9f7d5172fa. NOTE: Someone in the security community disagrees that this is a vulnerability     because the issue is a bug in parsing mount options which can only be specified by a privileged user, so     triggering the bug does not grant any powers not already held.. (CVE-2020-11565)

  - In the Linux kernel before 5.6.1, drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink camera USB     driver) mishandles invalid descriptors, aka CID-a246b4d54770. (CVE-2020-11668)

  - Improper input validation in BlueZ may allow an unauthenticated user to potentially enable escalation of     privilege via adjacent access. (CVE-2020-12351)

  - Improper access control in BlueZ may allow an unauthenticated user to potentially enable information     disclosure via adjacent access. (CVE-2020-12352)

  - An issue was discovered in the Linux kernel before 5.6.7. xdp_umem_reg in net/xdp/xdp_umem.c has an out-     of-bounds write (by a user with the CAP_NET_ADMIN capability) because of a lack of headroom validation.
    (CVE-2020-12659)

  - An issue was discovered in the Linux kernel through 5.6.11. sg_write lacks an sg_remove_request call in a     certain failure case, aka CID-83c6f2390040. (CVE-2020-12770)

  - A flaw was found in the Linux kernels implementation of the invert video code on VGA consoles when a     local attacker attempts to resize the console, calling an ioctl VT_RESIZE, which causes an out-of-bounds     write to occur. This flaw allows a local user with access to the VGA console to crash the system,     potentially escalating their privileges on the system. The highest threat from this vulnerability is to     data confidentiality and integrity as well as system availability. (CVE-2020-14331)

  - A flaw was found in the Linux kernel before 5.9-rc4. Memory corruption can be exploited to gain root     privileges from unprivileged processes. The highest threat from this vulnerability is to data     confidentiality and integrity. (CVE-2020-14386)

  - There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vc_do_resize function in     drivers/tty/vt/vt.c. (CVE-2020-8647)

  - There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the n_tty_receive_buf_common     function in drivers/tty/n_tty.c. (CVE-2020-8648)

  - There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vgacon_invert_region     function in drivers/video/console/vgacon.c. (CVE-2020-8649)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2020:4431 advisory.

  - kernel: null pointer dereference in dlpar_parse_cc_property in arch/powerrc/platforms/pseries/dlpar.c     causing denial of service (CVE-2019-12614)

  - kernel: use-after-free in drivers/bluetooth/hci_ldisc.c (CVE-2019-15917)

  - kernel: out-of-bounds access in function hclge_tm_schd_mode_vnet_base_cfg (CVE-2019-15925)

  - kernel: null-pointer dereference in drivers/net/fjes/fjes_main.c (CVE-2019-16231)

  - kernel: null pointer dereference in drivers/scsi/qla2xxx/qla_os.c (CVE-2019-16233)

  - kernel: memory leak in ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c (CVE-2019-18808)

  - kernel: memory leak in  af9005_identify_state() function in drivers/media/usb/dvb-usb/af9005.c     (CVE-2019-18809)

  - kernel: Denial Of Service in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c     (CVE-2019-19046)

  - kernel: A memory leak in the mwifiex_pcie_alloc_cmdrsp_buf() function in     drivers/net/wireless/marvell/mwifiex/pcie.c allows to cause DoS (CVE-2019-19056)

  - kernel: memory leak in the crypto_report() function in crypto/crypto_user_base.c allows for DoS     (CVE-2019-19062)

  - kernel: Two memory leaks in the rtl_usb_probe() function in drivers/net/wireless/realtek/rtlwifi/usb.c     allow for a DoS (CVE-2019-19063)

  - kernel: A memory leak in the rtl8xxxu_submit_int_urb() function in     drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c allows for a DoS (CVE-2019-19068)

  - kernel: A memory leak in the predicate_parse() function in kernel/trace/trace_events_filter.c allows for a     DoS (CVE-2019-19072)

  - kernel: out-of-bounds write in ext4_xattr_set_entry in fs/ext4/xattr.c (CVE-2019-19319)

  - Kernel: kvm: OOB memory write via kvm_dev_ioctl_get_cpuid (CVE-2019-19332)

  - kernel: mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a     use-after-free in ext4_put_super in fs/ext4/super.c (CVE-2019-19447)

  - kernel: a malicious USB device in the drivers/input/ff-memless.c leads to use-after-free (CVE-2019-19524)

  - kernel: information leak bug caused  by a malicious USB device in the drivers/media/usb/ttusb-     dec/ttusb_dec.c (CVE-2019-19533)

  - kernel: race condition caused by a malicious USB device in the USB character device driver layer     (CVE-2019-19537)

  - kernel: use-after-free in serial_ir_init_module() in drivers/media/rc/serial_ir.c (CVE-2019-19543)

  - kernel: use-after-free in __ext4_expand_extra_isize and ext4_xattr_set_entry related to fs/ext4/inode.c     and fs/ext4/super.c (CVE-2019-19767)

  - kernel: use-after-free in debugfs_remove in fs/debugfs/inode.c (CVE-2019-19770)

  - kernel: Null pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c (CVE-2019-20054)

  - kernel: out-of-bounds write via crafted keycode table (CVE-2019-20636)

  - kernel: kernel pointer leak due to WARN_ON statement in video driver leads to local information disclosure     (CVE-2019-9455)

  - kernel: use after free due to race condition in the video driver leads to local privilege escalation     (CVE-2019-9458)

  - kernel: possible use-after-free due to a race condition in cdev_get of char_dev.c (CVE-2020-0305)

  - kernel: uninitialized kernel data leak in userspace coredumps (CVE-2020-10732)

  - kernel: SELinux netlink permission check bypass (CVE-2020-10751)

  - kernel: kernel stack information leak on s390/s390x (CVE-2020-10773)

  - kernel: possibility of memory disclosure when reading the file /proc/sys/kernel/rh_features     (CVE-2020-10774)

  - kernel: vhost-net: stack overflow in get_raw_socket while checking sk_family field (CVE-2020-10942)

  - kernel: out-of-bounds write in mpol_parse_str function in mm/mempolicy.c (CVE-2020-11565)

  - kernel: mishandles invalid descriptors in drivers/media/usb/gspca/xirlink_cit.c (CVE-2020-11668)

  - kernel: buffer overflow in mt76_add_fragment function in drivers/net/wireless/mediatek/mt76/dma.c     (CVE-2020-12465)

  - kernel: sync of excessive duration via an XFS v5 image with crafted metadata (CVE-2020-12655)

  - kernel: xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write which could result in crash and data     coruption (CVE-2020-12659)

  - kernel: sg_write function lacks an sg_remove_request call in a certain failure case (CVE-2020-12770)

  - kernel: possible to send arbitrary signals to a privileged (suidroot) parent process (CVE-2020-12826)

  - kernel: referencing inode of removed superblock in get_futex_key() causes UAF (CVE-2020-14381)

  - kernel: soft-lockups in iov_iter_copy_from_user_atomic() could result in DoS (CVE-2020-25641)

  - kernel: out-of-bounds read in in vc_do_resize function in drivers/tty/vt/vt.c (CVE-2020-8647)

  - kernel: use-after-free in n_tty_receive_buf_common function in drivers/tty/n_tty.c (CVE-2020-8648)

  - kernel: invalid read location in vgacon_invert_region function in drivers/video/console/vgacon.c     (CVE-2020-8649)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:0019 advisory.

  - kernel: race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c     leads to use-after-free (CVE-2018-20836)

  - kernel: use-after-free in drivers/bluetooth/hci_ldisc.c (CVE-2019-15917)

  - kernel: out-of-bounds write via crafted keycode table (CVE-2019-20636)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:5656 advisory.

  - kernel: out of bounds write in function i2c_smbus_xfer_emulated in drivers/i2c/i2c-core-smbus.c     (CVE-2017-18551)

  - kernel: race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c     leads to use-after-free (CVE-2018-20836)

  - kernel: Denial Of Service in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c     (CVE-2019-19046)

  - kernel: mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a     use-after-free in ext4_put_super in fs/ext4/super.c (CVE-2019-19447)

  - kernel: out-of-bounds write via crafted keycode table (CVE-2019-20636)

  - kernel: out of bounds write in i2c driver leads to local escalation of privilege (CVE-2019-9454)

  - kernel: sg_write function lacks an sg_remove_request call in a certain failure case (CVE-2020-12770)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:5430 advisory.

  - kernel: out of bounds write in function i2c_smbus_xfer_emulated in drivers/i2c/i2c-core-smbus.c     (CVE-2017-18551)

  - kernel: mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a     use-after-free in ext4_put_super in fs/ext4/super.c (CVE-2019-19447)

  - kernel: out-of-bounds write via crafted keycode table (CVE-2019-20636)

  - kernel: out of bounds write in i2c driver leads to local escalation of privilege (CVE-2019-9454)

  - kernel: sg_write function lacks an sg_remove_request call in a certain failure case (CVE-2020-12770)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:2854 advisory.

  - kernel: nfs: use-after-free in svc_process_common() (CVE-2018-16884)

  - kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c, ipmi_si_mem_io.c, ipmi_si_port_io.c     (CVE-2019-11811)

  - kernel: use-after-free in drivers/bluetooth/hci_ldisc.c (CVE-2019-15917)

  - kernel: memory leak in ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c (CVE-2019-18808)

  - kernel: memory leak in the crypto_report() function in crypto/crypto_user_base.c allows for DoS     (CVE-2019-19062)

  - kernel: use-after-free in __ext4_expand_extra_isize and ext4_xattr_set_entry related to fs/ext4/inode.c     and fs/ext4/super.c (CVE-2019-19767)

  - kernel: out-of-bounds write via crafted keycode table (CVE-2019-20636)

  - kernel: use after free due to race condition in the video driver leads to local privilege escalation     (CVE-2019-9458)

  - kernel: use-after-free read in napi_gro_frags() in the Linux kernel (CVE-2020-10720)

  - kernel: out-of-bounds write in mpol_parse_str function in mm/mempolicy.c (CVE-2020-11565)

  - Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario (CVE-2020-12888)

  - Kernel: ppc: kvm: conflicting use of HSTATE_HOST_R1 to store r1 state leads to host stack corruption     (CVE-2020-8834)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4431 advisory.

  - kernel: null pointer dereference in dlpar_parse_cc_property in arch/powerrc/platforms/pseries/dlpar.c     causing denial of service (CVE-2019-12614)

  - kernel: use-after-free in drivers/bluetooth/hci_ldisc.c (CVE-2019-15917)

  - kernel: out-of-bounds access in function hclge_tm_schd_mode_vnet_base_cfg (CVE-2019-15925)

  - kernel: null-pointer dereference in drivers/net/fjes/fjes_main.c (CVE-2019-16231)

  - kernel: null pointer dereference in drivers/scsi/qla2xxx/qla_os.c (CVE-2019-16233)

  - kernel: memory leak in ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c (CVE-2019-18808)

  - kernel: memory leak in  af9005_identify_state() function in drivers/media/usb/dvb-usb/af9005.c     (CVE-2019-18809)

  - kernel: Denial Of Service in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c     (CVE-2019-19046)

  - kernel: A memory leak in the mwifiex_pcie_alloc_cmdrsp_buf() function in     drivers/net/wireless/marvell/mwifiex/pcie.c allows to cause DoS (CVE-2019-19056)

  - kernel: memory leak in the crypto_report() function in crypto/crypto_user_base.c allows for DoS     (CVE-2019-19062)

  - kernel: Two memory leaks in the rtl_usb_probe() function in drivers/net/wireless/realtek/rtlwifi/usb.c     allow for a DoS (CVE-2019-19063)

  - kernel: A memory leak in the rtl8xxxu_submit_int_urb() function in     drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c allows for a DoS (CVE-2019-19068)

  - kernel: A memory leak in the predicate_parse() function in kernel/trace/trace_events_filter.c allows for a     DoS (CVE-2019-19072)

  - kernel: out-of-bounds write in ext4_xattr_set_entry in fs/ext4/xattr.c (CVE-2019-19319)

  - Kernel: kvm: OOB memory write via kvm_dev_ioctl_get_cpuid (CVE-2019-19332)

  - kernel: mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a     use-after-free in ext4_put_super in fs/ext4/super.c (CVE-2019-19447)

  - kernel: a malicious USB device in the drivers/input/ff-memless.c leads to use-after-free (CVE-2019-19524)

  - kernel: information leak bug caused  by a malicious USB device in the drivers/media/usb/ttusb-     dec/ttusb_dec.c (CVE-2019-19533)

  - kernel: race condition caused by a malicious USB device in the USB character device driver layer     (CVE-2019-19537)

  - kernel: use-after-free in serial_ir_init_module() in drivers/media/rc/serial_ir.c (CVE-2019-19543)

  - kernel: use-after-free in __ext4_expand_extra_isize and ext4_xattr_set_entry related to fs/ext4/inode.c     and fs/ext4/super.c (CVE-2019-19767)

  - kernel: use-after-free in debugfs_remove in fs/debugfs/inode.c (CVE-2019-19770)

  - kernel: Null pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c (CVE-2019-20054)

  - kernel: out-of-bounds write via crafted keycode table (CVE-2019-20636)

  - kernel: kernel pointer leak due to WARN_ON statement in video driver leads to local information disclosure     (CVE-2019-9455)

  - kernel: use after free due to race condition in the video driver leads to local privilege escalation     (CVE-2019-9458)

  - kernel: possible use-after-free due to a race condition in cdev_get of char_dev.c (CVE-2020-0305)

  - kernel: uninitialized kernel data leak in userspace coredumps (CVE-2020-10732)

  - kernel: SELinux netlink permission check bypass (CVE-2020-10751)

  - kernel: kernel stack information leak on s390/s390x (CVE-2020-10773)

  - kernel: possibility of memory disclosure when reading the file /proc/sys/kernel/rh_features     (CVE-2020-10774)

  - kernel: vhost-net: stack overflow in get_raw_socket while checking sk_family field (CVE-2020-10942)

  - kernel: out-of-bounds write in mpol_parse_str function in mm/mempolicy.c (CVE-2020-11565)

  - kernel: mishandles invalid descriptors in drivers/media/usb/gspca/xirlink_cit.c (CVE-2020-11668)

  - kernel: buffer overflow in mt76_add_fragment function in drivers/net/wireless/mediatek/mt76/dma.c     (CVE-2020-12465)

  - kernel: sync of excessive duration via an XFS v5 image with crafted metadata (CVE-2020-12655)

  - kernel: xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write which could result in crash and data     coruption (CVE-2020-12659)

  - kernel: sg_write function lacks an sg_remove_request call in a certain failure case (CVE-2020-12770)

  - kernel: possible to send arbitrary signals to a privileged (suidroot) parent process (CVE-2020-12826)

  - kernel: referencing inode of removed superblock in get_futex_key() causes UAF (CVE-2020-14381)

  - kernel: soft-lockups in iov_iter_copy_from_user_atomic() could result in DoS (CVE-2020-25641)

  - kernel: out-of-bounds read in in vc_do_resize function in drivers/tty/vt/vt.c (CVE-2020-8647)

  - kernel: use-after-free in n_tty_receive_buf_common function in drivers/tty/n_tty.c (CVE-2020-8648)

  - kernel: invalid read location in vgacon_invert_region function in drivers/video/console/vgacon.c     (CVE-2020-8649)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4609 advisory.

  - kernel: use-after-free in drivers/bluetooth/hci_ldisc.c (CVE-2019-15917)

  - kernel: out-of-bounds access in function hclge_tm_schd_mode_vnet_base_cfg (CVE-2019-15925)

  - kernel: null-pointer dereference in drivers/net/fjes/fjes_main.c (CVE-2019-16231)

  - kernel: null pointer dereference in drivers/scsi/qla2xxx/qla_os.c (CVE-2019-16233)

  - kernel: memory leak in ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c (CVE-2019-18808)

  - kernel: memory leak in  af9005_identify_state() function in drivers/media/usb/dvb-usb/af9005.c     (CVE-2019-18809)

  - kernel: Denial Of Service in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c     (CVE-2019-19046)

  - kernel: A memory leak in the mwifiex_pcie_alloc_cmdrsp_buf() function in     drivers/net/wireless/marvell/mwifiex/pcie.c allows to cause DoS (CVE-2019-19056)

  - kernel: memory leak in the crypto_report() function in crypto/crypto_user_base.c allows for DoS     (CVE-2019-19062)

  - kernel: Two memory leaks in the rtl_usb_probe() function in drivers/net/wireless/realtek/rtlwifi/usb.c     allow for a DoS (CVE-2019-19063)

  - kernel: A memory leak in the rtl8xxxu_submit_int_urb() function in     drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c allows for a DoS (CVE-2019-19068)

  - kernel: A memory leak in the predicate_parse() function in kernel/trace/trace_events_filter.c allows for a     DoS (CVE-2019-19072)

  - kernel: out-of-bounds write in ext4_xattr_set_entry in fs/ext4/xattr.c (CVE-2019-19319)

  - Kernel: kvm: OOB memory write via kvm_dev_ioctl_get_cpuid (CVE-2019-19332)

  - kernel: mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a     use-after-free in ext4_put_super in fs/ext4/super.c (CVE-2019-19447)

  - kernel: a malicious USB device in the drivers/input/ff-memless.c leads to use-after-free (CVE-2019-19524)

  - kernel: information leak bug caused  by a malicious USB device in the drivers/media/usb/ttusb-     dec/ttusb_dec.c (CVE-2019-19533)

  - kernel: race condition caused by a malicious USB device in the USB character device driver layer     (CVE-2019-19537)

  - kernel: use-after-free in serial_ir_init_module() in drivers/media/rc/serial_ir.c (CVE-2019-19543)

  - kernel: use-after-free in __ext4_expand_extra_isize and ext4_xattr_set_entry related to fs/ext4/inode.c     and fs/ext4/super.c (CVE-2019-19767)

  - kernel: use-after-free in debugfs_remove in fs/debugfs/inode.c (CVE-2019-19770)

  - kernel: Null pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c (CVE-2019-20054)

  - kernel: out-of-bounds write via crafted keycode table (CVE-2019-20636)

  - kernel: kernel pointer leak due to WARN_ON statement in video driver leads to local information disclosure     (CVE-2019-9455)

  - kernel: use after free due to race condition in the video driver leads to local privilege escalation     (CVE-2019-9458)

  - kernel: possible use-after-free due to a race condition in cdev_get of char_dev.c (CVE-2020-0305)

  - kernel: uninitialized kernel data leak in userspace coredumps (CVE-2020-10732)

  - kernel: SELinux netlink permission check bypass (CVE-2020-10751)

  - kernel: possibility of memory disclosure when reading the file /proc/sys/kernel/rh_features     (CVE-2020-10774)

  - kernel: vhost-net: stack overflow in get_raw_socket while checking sk_family field (CVE-2020-10942)

  - kernel: out-of-bounds write in mpol_parse_str function in mm/mempolicy.c (CVE-2020-11565)

  - kernel: mishandles invalid descriptors in drivers/media/usb/gspca/xirlink_cit.c (CVE-2020-11668)

  - kernel: sync of excessive duration via an XFS v5 image with crafted metadata (CVE-2020-12655)

  - kernel: xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write which could result in crash and data     coruption (CVE-2020-12659)

  - kernel: sg_write function lacks an sg_remove_request call in a certain failure case (CVE-2020-12770)

  - kernel: possible to send arbitrary signals to a privileged (suidroot) parent process (CVE-2020-12826)

  - kernel: referencing inode of removed superblock in get_futex_key() causes UAF (CVE-2020-14381)

  - kernel: soft-lockups in iov_iter_copy_from_user_atomic() could result in DoS (CVE-2020-25641)

  - kernel: out-of-bounds read in in vc_do_resize function in drivers/tty/vt/vt.c (CVE-2020-8647)

  - kernel: use-after-free in n_tty_receive_buf_common function in drivers/tty/n_tty.c (CVE-2020-8648)

  - kernel: invalid read location in vgacon_invert_region function in drivers/video/console/vgacon.c     (CVE-2020-8649)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Security Fix(es) :

  - kernel: use-after-free in sound/core/timer.c     (CVE-2019-19807)

  - kernel: out of bounds write in function     i2c_smbus_xfer_emulated in drivers/i2c/i2c-core-smbus.c     (CVE-2017-18551)

  - kernel: race condition in smp_task_timedout() and     smp_task_done() in drivers/scsi/libsas/sas_expander.c     leads to use-after-free (CVE-2018-20836)

  - kernel: out of bounds write in i2c driver leads to local     escalation of privilege (CVE-2019-9454)

  - kernel: use after free due to race condition in the     video driver leads to local privilege escalation     (CVE-2019-9458)

The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2020:4060 advisory.

  - kernel: out of bounds write in function i2c_smbus_xfer_emulated in drivers/i2c/i2c-core-smbus.c     (CVE-2017-18551)

  - kernel: race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c     leads to use-after-free (CVE-2018-20836)

  - kernel: null pointer dereference in dlpar_parse_cc_property in arch/powerrc/platforms/pseries/dlpar.c     causing denial of service (CVE-2019-12614)

  - kernel: null pointer dereference in drivers/media/usb/zr364xx/zr364xx.c driver (CVE-2019-15217)

  - kernel: Memory leak in drivers/scsi/libsas/sas_expander.c (CVE-2019-15807)

  - kernel: use-after-free in drivers/bluetooth/hci_ldisc.c (CVE-2019-15917)

  - kernel: null-pointer dereference in drivers/net/fjes/fjes_main.c (CVE-2019-16231)

  - kernel: null pointer dereference in drivers/scsi/qla2xxx/qla_os.c (CVE-2019-16233)

  - kernel: Memory leak in sit_init_net() in net/ipv6/sit.c (CVE-2019-16994)

  - kernel: unprivileged users able to create RAW sockets in AF_IEEE802154 network protocol (CVE-2019-17053)

  - kernel: unprivileged users able to create RAW sockets in AF_ISDN network protocol (CVE-2019-17055)

  - kernel: memory leak in ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c (CVE-2019-18808)

  - kernel: Denial Of Service in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c     (CVE-2019-19046)

  - kernel: memory leak in the nl80211_get_ftm_responder_stats() function in net/wireless/nl80211.c allows DoS     (CVE-2019-19055)

  - kernel: A memory leak in the alloc_sgtable() function in drivers/net/wireless/intel/iwlwifi/fw/dbg.c     allows for a DoS (CVE-2019-19058)

  - kernel: Multiple memory leaks in the iwl_pcie_ctxt_info_gen3_init() function in     drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c allows for a DoS (CVE-2019-19059)

  - kernel: memory leak in the crypto_report() function in crypto/crypto_user_base.c allows for DoS     (CVE-2019-19062)

  - kernel: Two memory leaks in the rtl_usb_probe() function in drivers/net/wireless/realtek/rtlwifi/usb.c     allow for a DoS (CVE-2019-19063)

  - Kernel: kvm: OOB memory write via kvm_dev_ioctl_get_cpuid (CVE-2019-19332)

  - kernel: mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a     use-after-free in ext4_put_super in fs/ext4/super.c (CVE-2019-19447)

  - kernel: use-after-free caused by a malicious USB device in the drivers/usb/misc/adutux.c driver     (CVE-2019-19523)

  - kernel: a malicious USB device in the drivers/input/ff-memless.c leads to use-after-free (CVE-2019-19524)

  - kernel: use-after-free caused by a malicious USB device in the drivers/usb/class/cdc-acm.c driver     (CVE-2019-19530)

  - kernel: information leak bug caused by a malicious USB device in the     drivers/net/can/usb/peak_usb/pcan_usb_core.c driver (CVE-2019-19534)

  - kernel: race condition caused by a malicious USB device in the USB character device driver layer     (CVE-2019-19537)

  - kernel: use-after-free in __ext4_expand_extra_isize and ext4_xattr_set_entry related to fs/ext4/inode.c     and fs/ext4/super.c (CVE-2019-19767)

  - kernel: use-after-free in sound/core/timer.c (CVE-2019-19807)

  - kernel: Null pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c (CVE-2019-20054)

  - kernel: memory leak in mwifiex_tm_cmd in drivers/net/wireless/marvell/mwifiex/cfg80211.c (CVE-2019-20095)

  - kernel: out-of-bounds write via crafted keycode table (CVE-2019-20636)

  - kernel: out of bounds write in i2c driver leads to local escalation of privilege (CVE-2019-9454)

  - kernel: use after free due to race condition in the video driver leads to local privilege escalation     (CVE-2019-9458)

  - kernel: use-after-free in cdev_put() when a PTP device is removed while it's chardev is open     (CVE-2020-10690)

  - kernel: uninitialized kernel data leak in userspace coredumps (CVE-2020-10732)

  - kernel: NFS client crash due to index buffer overflow during Direct IO write causing kernel panic     (CVE-2020-10742)

  - kernel: SELinux netlink permission check bypass (CVE-2020-10751)

  - kernel: vhost-net: stack overflow in get_raw_socket while checking sk_family field (CVE-2020-10942)

  - kernel: out-of-bounds write in mpol_parse_str function in mm/mempolicy.c (CVE-2020-11565)

  - kernel: sg_write function lacks an sg_remove_request call in a certain failure case (CVE-2020-12770)

  - kernel: possible to send arbitrary signals to a privileged (suidroot) parent process (CVE-2020-12826)

  - kernel: memory corruption in Voice over IP nf_conntrack_h323 module (CVE-2020-14305)

  - kernel: some ipv6 protocols not encrypted over ipsec tunnel (CVE-2020-1749)

  - Kernel: kvm: nVMX: L2 guest may trick the L0 hypervisor to access sensitive L1 resources (CVE-2020-2732)

  - kernel: out-of-bounds read in in vc_do_resize function in drivers/tty/vt/vt.c (CVE-2020-8647)

  - kernel: invalid read location in vgacon_invert_region function in drivers/video/console/vgacon.c     (CVE-2020-8649)

  - kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c (CVE-2020-9383)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4060 advisory.

  - kernel: out of bounds write in function i2c_smbus_xfer_emulated in drivers/i2c/i2c-core-smbus.c     (CVE-2017-18551)

  - kernel: race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c     leads to use-after-free (CVE-2018-20836)

  - kernel: null pointer dereference in dlpar_parse_cc_property in arch/powerrc/platforms/pseries/dlpar.c     causing denial of service (CVE-2019-12614)

  - kernel: null pointer dereference in drivers/media/usb/zr364xx/zr364xx.c driver (CVE-2019-15217)

  - kernel: Memory leak in drivers/scsi/libsas/sas_expander.c (CVE-2019-15807)

  - kernel: use-after-free in drivers/bluetooth/hci_ldisc.c (CVE-2019-15917)

  - kernel: null-pointer dereference in drivers/net/fjes/fjes_main.c (CVE-2019-16231)

  - kernel: null pointer dereference in drivers/scsi/qla2xxx/qla_os.c (CVE-2019-16233)

  - kernel: Memory leak in sit_init_net() in net/ipv6/sit.c (CVE-2019-16994)

  - kernel: unprivileged users able to create RAW sockets in AF_IEEE802154 network protocol (CVE-2019-17053)

  - kernel: unprivileged users able to create RAW sockets in AF_ISDN network protocol (CVE-2019-17055)

  - kernel: memory leak in ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c (CVE-2019-18808)

  - kernel: Denial Of Service in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c     (CVE-2019-19046)

  - kernel: memory leak in the nl80211_get_ftm_responder_stats() function in net/wireless/nl80211.c allows DoS     (CVE-2019-19055)

  - kernel: A memory leak in the alloc_sgtable() function in drivers/net/wireless/intel/iwlwifi/fw/dbg.c     allows for a DoS (CVE-2019-19058)

  - kernel: Multiple memory leaks in the iwl_pcie_ctxt_info_gen3_init() function in     drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c allows for a DoS (CVE-2019-19059)

  - kernel: memory leak in the crypto_report() function in crypto/crypto_user_base.c allows for DoS     (CVE-2019-19062)

  - kernel: Two memory leaks in the rtl_usb_probe() function in drivers/net/wireless/realtek/rtlwifi/usb.c     allow for a DoS (CVE-2019-19063)

  - Kernel: kvm: OOB memory write via kvm_dev_ioctl_get_cpuid (CVE-2019-19332)

  - kernel: mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a     use-after-free in ext4_put_super in fs/ext4/super.c (CVE-2019-19447)

  - kernel: use-after-free caused by a malicious USB device in the drivers/usb/misc/adutux.c driver     (CVE-2019-19523)

  - kernel: a malicious USB device in the drivers/input/ff-memless.c leads to use-after-free (CVE-2019-19524)

  - kernel: use-after-free caused by a malicious USB device in the drivers/usb/class/cdc-acm.c driver     (CVE-2019-19530)

  - kernel: information leak bug caused by a malicious USB device in the     drivers/net/can/usb/peak_usb/pcan_usb_core.c driver (CVE-2019-19534)

  - kernel: race condition caused by a malicious USB device in the USB character device driver layer     (CVE-2019-19537)

  - kernel: use-after-free in __ext4_expand_extra_isize and ext4_xattr_set_entry related to fs/ext4/inode.c     and fs/ext4/super.c (CVE-2019-19767)

  - kernel: use-after-free in sound/core/timer.c (CVE-2019-19807)

  - kernel: Null pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c (CVE-2019-20054)

  - kernel: memory leak in mwifiex_tm_cmd in drivers/net/wireless/marvell/mwifiex/cfg80211.c (CVE-2019-20095)

  - kernel: out-of-bounds write via crafted keycode table (CVE-2019-20636)

  - kernel: out of bounds write in i2c driver leads to local escalation of privilege (CVE-2019-9454)

  - kernel: use after free due to race condition in the video driver leads to local privilege escalation     (CVE-2019-9458)

  - kernel: use-after-free in cdev_put() when a PTP device is removed while it's chardev is open     (CVE-2020-10690)

  - kernel: uninitialized kernel data leak in userspace coredumps (CVE-2020-10732)

  - kernel: NFS client crash due to index buffer overflow during Direct IO write causing kernel panic     (CVE-2020-10742)

  - kernel: SELinux netlink permission check bypass (CVE-2020-10751)

  - kernel: vhost-net: stack overflow in get_raw_socket while checking sk_family field (CVE-2020-10942)

  - kernel: out-of-bounds write in mpol_parse_str function in mm/mempolicy.c (CVE-2020-11565)

  - kernel: sg_write function lacks an sg_remove_request call in a certain failure case (CVE-2020-12770)

  - kernel: possible to send arbitrary signals to a privileged (suidroot) parent process (CVE-2020-12826)

  - kernel: memory corruption in Voice over IP nf_conntrack_h323 module (CVE-2020-14305)

  - kernel: some ipv6 protocols not encrypted over ipsec tunnel (CVE-2020-1749)

  - Kernel: kvm: nVMX: L2 guest may trick the L0 hypervisor to access sensitive L1 resources (CVE-2020-2732)

  - kernel: out-of-bounds read in in vc_do_resize function in drivers/tty/vt/vt.c (CVE-2020-8647)

  - kernel: invalid read location in vgacon_invert_region function in drivers/video/console/vgacon.c     (CVE-2020-8649)

  - kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c (CVE-2020-9383)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4062 advisory.

  - kernel: out of bounds write in function i2c_smbus_xfer_emulated in drivers/i2c/i2c-core-smbus.c     (CVE-2017-18551)

  - kernel: race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c     leads to use-after-free (CVE-2018-20836)

  - kernel: null pointer dereference in drivers/media/usb/zr364xx/zr364xx.c driver (CVE-2019-15217)

  - kernel: Memory leak in drivers/scsi/libsas/sas_expander.c (CVE-2019-15807)

  - kernel: use-after-free in drivers/bluetooth/hci_ldisc.c (CVE-2019-15917)

  - kernel: null-pointer dereference in drivers/net/fjes/fjes_main.c (CVE-2019-16231)

  - kernel: null pointer dereference in drivers/scsi/qla2xxx/qla_os.c (CVE-2019-16233)

  - kernel: Memory leak in sit_init_net() in net/ipv6/sit.c (CVE-2019-16994)

  - kernel: unprivileged users able to create RAW sockets in AF_IEEE802154 network protocol (CVE-2019-17053)

  - kernel: unprivileged users able to create RAW sockets in AF_ISDN network protocol (CVE-2019-17055)

  - kernel: memory leak in ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c (CVE-2019-18808)

  - kernel: Denial Of Service in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c     (CVE-2019-19046)

  - kernel: memory leak in the nl80211_get_ftm_responder_stats() function in net/wireless/nl80211.c allows DoS     (CVE-2019-19055)

  - kernel: A memory leak in the alloc_sgtable() function in drivers/net/wireless/intel/iwlwifi/fw/dbg.c     allows for a DoS (CVE-2019-19058)

  - kernel: Multiple memory leaks in the iwl_pcie_ctxt_info_gen3_init() function in     drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c allows for a DoS (CVE-2019-19059)

  - kernel: memory leak in the crypto_report() function in crypto/crypto_user_base.c allows for DoS     (CVE-2019-19062)

  - kernel: Two memory leaks in the rtl_usb_probe() function in drivers/net/wireless/realtek/rtlwifi/usb.c     allow for a DoS (CVE-2019-19063)

  - Kernel: kvm: OOB memory write via kvm_dev_ioctl_get_cpuid (CVE-2019-19332)

  - kernel: mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a     use-after-free in ext4_put_super in fs/ext4/super.c (CVE-2019-19447)

  - kernel: use-after-free caused by a malicious USB device in the drivers/usb/misc/adutux.c driver     (CVE-2019-19523)

  - kernel: a malicious USB device in the drivers/input/ff-memless.c leads to use-after-free (CVE-2019-19524)

  - kernel: use-after-free caused by a malicious USB device in the drivers/usb/class/cdc-acm.c driver     (CVE-2019-19530)

  - kernel: information leak bug caused by a malicious USB device in the     drivers/net/can/usb/peak_usb/pcan_usb_core.c driver (CVE-2019-19534)

  - kernel: race condition caused by a malicious USB device in the USB character device driver layer     (CVE-2019-19537)

  - kernel: use-after-free in __ext4_expand_extra_isize and ext4_xattr_set_entry related to fs/ext4/inode.c     and fs/ext4/super.c (CVE-2019-19767)

  - kernel: use-after-free in sound/core/timer.c (CVE-2019-19807)

  - kernel: Null pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c (CVE-2019-20054)

  - kernel: memory leak in mwifiex_tm_cmd in drivers/net/wireless/marvell/mwifiex/cfg80211.c (CVE-2019-20095)

  - kernel: out-of-bounds write via crafted keycode table (CVE-2019-20636)

  - kernel: out of bounds write in i2c driver leads to local escalation of privilege (CVE-2019-9454)

  - kernel: use after free due to race condition in the video driver leads to local privilege escalation     (CVE-2019-9458)

  - kernel: use-after-free in cdev_put() when a PTP device is removed while it's chardev is open     (CVE-2020-10690)

  - kernel: uninitialized kernel data leak in userspace coredumps (CVE-2020-10732)

  - kernel: NFS client crash due to index buffer overflow during Direct IO write causing kernel panic     (CVE-2020-10742)

  - kernel: SELinux netlink permission check bypass (CVE-2020-10751)

  - kernel: vhost-net: stack overflow in get_raw_socket while checking sk_family field (CVE-2020-10942)

  - kernel: out-of-bounds write in mpol_parse_str function in mm/mempolicy.c (CVE-2020-11565)

  - kernel: sg_write function lacks an sg_remove_request call in a certain failure case (CVE-2020-12770)

  - kernel: possible to send arbitrary signals to a privileged (suidroot) parent process (CVE-2020-12826)

  - kernel: memory corruption in Voice over IP nf_conntrack_h323 module (CVE-2020-14305)

  - kernel: some ipv6 protocols not encrypted over ipsec tunnel (CVE-2020-1749)

  - Kernel: kvm: nVMX: L2 guest may trick the L0 hypervisor to access sensitive L1 resources (CVE-2020-2732)

  - kernel: out-of-bounds read in in vc_do_resize function in drivers/tty/vt/vt.c (CVE-2020-8647)

  - kernel: invalid read location in vgacon_invert_region function in drivers/video/console/vgacon.c     (CVE-2020-8649)

  - kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c (CVE-2020-9383)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - The Linux kernel through 5.7.11 allows remote attackers     to make observations that help to obtain sensitive     information about the internal state of the network     RNG, aka CID-f227e3ec3b5c. This is related to     drivers/char/random.c and     kernel/time/timer.c.(CVE-2020-16166)

  - A flaw was found in the Linux kernel's implementation     of the invert video code on VGA consoles when a local     attacker attempts to resize the console, calling an     ioctl VT_RESIZE, which causes an out-of-bounds write to     occur. This flaw allows a local user with access to the     VGA console to crash the system, potentially escalating     their privileges on the system. The highest threat from     this vulnerability is to data confidentiality and     integrity as well as system     availability.(CVE-2020-14331)

  - A buffer over-read flaw was found in RH kernel versions     before 5.0 in crypto_authenc_extractkeys in     crypto/authenc.c in the IPsec Cryptographic algorithm's     module, authenc. When a payload longer than 4 bytes,     and is not following 4-byte alignment boundary     guidelines, it causes a buffer over-read threat,     leading to a system crash. This flaw allows a local     attacker with user privileges to cause a denial of     service.(CVE-2020-10769)

  - An issue was discovered in the Linux kernel through     5.7.1. drivers/tty/vt/keyboard.c has an integer     overflow if k_ascii is called several times in a row,     aka CID-b86dab054059. NOTE: Members in the community     argue that the integer overflow does not lead to a     security issue in this case.(CVE-2020-13974)

  - In the Linux kernel through 5.7.6, usbtest_disconnect     in drivers/usb/misc/usbtest.c has a memory leak, aka     CID-28ebeb8db770.(CVE-2020-15393)

  - The VFIO PCI driver in the Linux kernel through 5.6.13     mishandles attempts to access disabled memory     space.(CVE-2020-12888)

  - go7007_snd_init in     drivers/media/usb/go7007/snd-go7007.c in the Linux     kernel before 5.6 does not call snd_card_free for a     failure path, which causes a memory leak, aka     CID-9453264ef586.(CVE-2019-20810)

  - An issue was discovered in the Linux kernel before     5.0.6. In rx_queue_add_kobject() and     netdev_queue_add_kobject() in net/core/net-sysfs.c, a     reference count is mishandled, aka     CID-a3e23f719f5c.(CVE-2019-20811)

  - An issue was discovered in the Linux kernel before     5.4.7. The prb_calc_retire_blk_tmo() function in     net/packet/af_packet.c can result in a denial of     service (CPU consumption and soft lockup) in a certain     failure case involving TPACKET_V3, aka     CID-b43d1f9f7067.(CVE-2019-20812)

  - A flaw was found in the Linux kernel's implementation     of Userspace core dumps. This flaw allows an attacker     with a local account to crash a trivial program and     exfiltrate private kernel data.(CVE-2020-10732)

  - A flaw was found in the Linux kernels SELinux LSM hook     implementation before version 5.7, where it incorrectly     assumed that an skb would only contain a single netlink     message. The hook would incorrectly only validate the     first netlink message in the skb and allow or deny the     rest of the messages within the skb with the granted     permission without further processing.(CVE-2020-10751)

  - gadget_dev_desc_UDC_store in     drivers/usb/gadget/configfs.c in the Linux kernel     through 5.6.13 relies on kstrdup without considering     the possibility of an internal '\0' value, which allows     attackers to trigger an out-of-bounds read, aka     CID-15753588bcd4.(CVE-2020-13143)

  - A signal access-control issue was discovered in the     Linux kernel before 5.6.5, aka CID-7395ea4e65c2.
    Because exec_id in include/linux/sched.h is only 32     bits, an integer overflow can interfere with a     do_notify_parent protection mechanism. A child process     can send an arbitrary signal to a parent process in a     different security domain. Exploitation limitations     include the amount of elapsed time before an integer     overflow occurs, and the lack of scenarios where     signals to a parent process present a substantial     operational threat.(CVE-2020-12826)

  - The __mptctl_ioctl function in     drivers/message/fusion/mptctl.c in the Linux kernel     before 5.4.14 allows local users to hold an incorrect     lock during the ioctl operation and trigger a race     condition, i.e., a 'double fetch' vulnerability, aka     CID-28d76df18f0a. NOTE: the vendor states 'The security     impact of this bug is not as bad as it could have been     because these operations are all privileged and root     already has enormous destructive     power.'(CVE-2020-12652)

  - An issue was found in Linux kernel before 5.5.4. The     mwifiex_cmd_append_vsie_tlv() function in     drivers/net/wireless/marvell/mwifiex/scan.c allows     local users to gain privileges or cause a denial of     service because of an incorrect memcpy and buffer     overflow, aka CID-b70261a288ea.(CVE-2020-12653)

  - An issue was found in Linux kernel before 5.5.4.
    mwifiex_ret_wmm_get_status() in     drivers/net/wireless/marvell/mwifiex/wmm.c allows a     remote AP to trigger a heap-based buffer overflow     because of an incorrect memcpy, aka     CID-3a9b153c5591.(CVE-2020-12654)

  - An issue was discovered in xfs_agf_verify in     fs/xfs/libxfs/xfs_alloc.c in the Linux kernel through     5.6.10. Attackers may trigger a sync of excessive     duration via an XFS v5 image with crafted metadata, aka     CID-d0c7feaf8767.(CVE-2020-12655)

  - A flaw was found in the Linux kernel's implementation     of GRO in versions before 5.2. This flaw allows an     attacker with local access to crash the     system.(CVE-2020-10720)

  - An issue was discovered in the Linux kernel through     5.6.11. sg_write lacks an sg_remove_request call in a     certain failure case, aka     CID-83c6f2390040.(CVE-2020-12770)

  - In the Linux kernel before 5.4.12,     drivers/input/input.c has out-of-bounds writes via a     crafted keycode table, as demonstrated by     input_set_keycode, aka     CID-cb222aed03d7.(CVE-2019-20636)

  - An issue was discovered in the stv06xx subsystem in the     Linux kernel before 5.6.1.
    drivers/media/usb/gspca/stv06xx/stv06xx.c and     drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c     mishandle invalid descriptors, as demonstrated by a     NULL pointer dereference, aka     CID-485b06aadb93.(CVE-2020-11609)

  - In the netlink driver, there is a possible out of     bounds write due to a race condition. This could lead     to local escalation of privilege with System execution     privileges needed. User interaction is not needed for     exploitation.Product: AndroidVersions: Android     kernelAndroid ID: A-65025077(CVE-2020-0066)

  - In the Linux kernel before 5.5.8, get_raw_socket in     drivers/vhost/net.c lacks validation of an sk_family     field, which might allow attackers to trigger kernel     stack corruption via crafted system     calls.(CVE-2020-10942)

  - An issue was discovered in slc_bump in     drivers/net/can/slcan.c in the Linux kernel through     5.6.2. It allows attackers to read uninitialized     can_frame data, potentially containing sensitive     information from kernel stack memory, if the     configuration lacks CONFIG_INIT_STACK_ALL, aka     CID-b9258a2cece4.(CVE-2020-11494)

  - An issue was discovered in the Linux kernel through     5.6.2. mpol_parse_str in mm/mempolicy.c has a     stack-based out-of-bounds write because an empty     nodelist is mishandled during mount option parsing, aka     CID-aa9f7d5172fa. NOTE: Someone in the security     community disagrees that this is a vulnerability     because the issue 'is a bug in parsing mount options     which can only be specified by a privileged user, so     triggering the bug does not grant any powers not     already held.'.(CVE-2020-11565)

  - An issue was discovered in the Linux kernel before     5.6.1. drivers/media/usb/gspca/ov519.c allows NULL     pointer dereferences in ov511_mode_init_regs and     ov518_mode_init_regs when there are zero endpoints, aka     CID-998912346c0d.(CVE-2020-11608)

  - The kernel in Red Hat Enterprise Linux 7 and MRG-2 does     not clear garbage data for SG_IO buffer, which may     leaking sensitive information to     userspace.(CVE-2014-8181)

  - In the Linux kernel 5.0.21, mounting a crafted ext4     filesystem image, performing some operations, and     unmounting can lead to a use-after-free in     ext4_put_super in fs/ext4/super.c, related to     dump_orphan_list in fs/ext4/super.c.(CVE-2019-19447)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - In the Linux kernel 5.4.0-rc2, there is a     use-after-free (read) in the __blk_add_trace function     in kernel/trace/blktrace.c (which is used to fill out a     blk_io_trace structure and place it in a per-cpu     sub-buffer).(CVE-2019-19768)

  - The Linux kernel through 5.3.13 has a start_offset+size     Integer Overflow in cpia2_remap_buffer in     drivers/media/usb/cpia2/cpia2_core.c because cpia2 has     its own mmap implementation. This allows local users     (with /dev/video0 access) to obtain read and write     permissions on kernel physical pages, which can     possibly result in a privilege     escalation.(CVE-2019-18675)

  - An issue was discovered in the Linux kernel through     5.5.6. set_fdc in drivers/block/floppy.c leads to a     wait_til_ready out-of-bounds read because the FDC index     is not checked for errors before assigning it, aka     CID-2e90ca68b0d2.(CVE-2020-9383)

  - There is a use-after-free vulnerability in the Linux     kernel through 5.5.2 in the vgacon_invert_region     function in     drivers/video/console/vgacon.c.(CVE-2020-8649)

  - There is a use-after-free vulnerability in the Linux     kernel through 5.5.2 in the vc_do_resize function in     drivers/tty/vt/vt.c.(CVE-2020-8647)

  - The time subsystem in the Linux kernel, when     CONFIG_TIMER_STATS is enabled, allows local users to     discover real PID values (as distinguished from PID     values inside a PID namespace) by reading the     /proc/timer_list file, related to the print_timer     function in kernel/time/timer_list.c and the
    __timer_stats_timer_set_start_info function in     kernel/time/timer.c.(CVE-2017-5967)

  - ** RESERVED ** This candidate has been reserved by an     organization or individual that will use it when     announcing a new security problem. When the candidate     has been publicized, the details for this candidate     will be provided.(CVE-2014-8181)

  - ext4_protect_reserved_inode in fs/ext4/block_validity.c     in the Linux kernel through 5.5.3 allows attackers to     cause a denial of service (soft lockup) via a crafted     journal size.(CVE-2020-8992)

  - ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER.
    ConsultIDs: CVE-2020-12826. Reason: This candidate is a     duplicate of CVE-2020-12826. Notes: All CVE users     should reference CVE-2020-12826 instead of this     candidate. All references and descriptions in this     candidate have been removed to prevent accidental     usage.(CVE-2020-10741)

  - A signal access-control issue was discovered in the     Linux kernel before 5.6.5, aka CID-7395ea4e65c2.
    Because exec_id in include/linux/sched.h is only 32     bits, an integer overflow can interfere with a     do_notify_parent protection mechanism. A child process     can send an arbitrary signal to a parent process in a     different security domain. Exploitation limitations     include the amount of elapsed time before an integer     overflow occurs, and the lack of scenarios where     signals to a parent process present a substantial     operational threat.(CVE-2020-12826)

  - gadget_dev_desc_UDC_store in     drivers/usb/gadget/configfs.c in the Linux kernel     through 5.6.13 relies on kstrdup without considering     the possibility of an internal '\0' value, which allows     attackers to trigger an out-of-bounds read, aka     CID-15753588bcd4.(CVE-2020-13143)

  - An issue was discovered in the Linux kernel through     5.6.11. sg_write lacks an sg_remove_request call in a     certain failure case, aka     CID-83c6f2390040.(CVE-2020-12770)

  - An issue was found in Linux kernel before 5.5.4.
    mwifiex_ret_wmm_get_status() in     drivers/net/wireless/marvell/mwifiex/wmm.c allows a     remote AP to trigger a heap-based buffer overflow     because of an incorrect memcpy, aka     CID-3a9b153c5591.(CVE-2020-12654)

  - An issue was found in Linux kernel before 5.5.4. The     mwifiex_cmd_append_vsie_tlv() function in     drivers/net/wireless/marvell/mwifiex/scan.c allows     local users to gain privileges or cause a denial of     service because of an incorrect memcpy and buffer     overflow, aka CID-b70261a288ea.(CVE-2020-12653)

  - usb_sg_cancel in drivers/usb/core/message.c in the     Linux kernel before 5.6.8 has a use-after-free because     a transfer occurs without a reference, aka     CID-056ad39ee925.(CVE-2020-12464)

  - The __mptctl_ioctl function in     drivers/message/fusion/mptctl.c in the Linux kernel     before 5.4.14 allows local users to hold an incorrect     lock during the ioctl operation and trigger a race     condition, i.e., a 'double fetch' vulnerability, aka     CID-28d76df18f0a. NOTE: the vendor states 'The security     impact of this bug is not as bad as it could have been     because these operations are all privileged and root     already has enormous destructive     power.'(CVE-2020-12652)

  - In the Linux kernel before 5.6.1,     drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink     camera USB driver) mishandles invalid descriptors, aka     CID-a246b4d54770.(CVE-2020-11668)

  - An issue was discovered in the stv06xx subsystem in the     Linux kernel before 5.6.1.
    drivers/media/usb/gspca/stv06xx/stv06xx.c and     drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c     mishandle invalid descriptors, as demonstrated by a     NULL pointer dereference, aka     CID-485b06aadb93.(CVE-2020-11609)

  - An issue was discovered in the Linux kernel before     5.6.1. drivers/media/usb/gspca/ov519.c allows NULL     pointer dereferences in ov511_mode_init_regs and     ov518_mode_init_regs when there are zero endpoints, aka     CID-998912346c0d.(CVE-2020-11608)

  - ** DISPUTED ** An issue was discovered in the Linux     kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c     has a stack-based out-of-bounds write because an empty     nodelist is mishandled during mount option parsing, aka     CID-aa9f7d5172fa. NOTE: Someone in the security     community disagrees that this is a vulnerability     because the issue 'is a bug in parsing mount options     which can only be specified by a privileged user, so     triggering the bug does not grant any powers not     already held.'.(CVE-2020-11565)

  - In the Linux kernel before 5.4.12,     drivers/input/input.c has out-of-bounds writes via a     crafted keycode table, as demonstrated by     input_set_keycode, aka     CID-cb222aed03d7.(CVE-2019-20636)

  - In the Linux kernel before 5.5.8, get_raw_socket in     drivers/vhost/net.c lacks validation of an sk_family     field, which might allow attackers to trigger kernel     stack corruption via crafted system     calls.(CVE-2020-10942)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the kernel packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - In the Linux kernel 5.0.21, mounting a crafted f2fs     filesystem image can cause a NULL pointer dereference     in f2fs_recover_fsync_data in fs/f2fs/recovery.c. This     is related to F2FS_P_SB in     fs/f2fs/f2fs.h.(CVE-2019-19815)

  - ** DISPUTED ** __btrfs_free_extent in     fs/btrfs/extent-tree.c in the Linux kernel through     5.3.12 calls btrfs_print_leaf in a certain ENOENT case,     which allows local users to obtain potentially     sensitive information about register values via the     dmesg program. NOTE: The BTRFS development team     disputes this issues as not being a vulnerability     because '1) The kernel provide facilities to restrict     access to dmesg - dmesg_restrict=1 sysctl option. So     it's really up to the system administrator to judge     whether dmesg access shall be disallowed or not. 2)     WARN/WARN_ON are widely used macros in the linux     kernel. If this CVE is considered valid this would mean     there are literally thousands CVE lurking in the kernel
    - something which clearly is not the     case.'(CVE-2019-19039)

  - ext4_empty_dir in fs/ext4/namei.c in the Linux kernel     through 5.3.12 allows a NULL pointer dereference     because ext4_read_dirblock(inode,0,DIRENT_HTREE) can be     zero.(CVE-2019-19037)

  - btrfs_root_node in fs/btrfs/ctree.c in the Linux kernel     through 5.3.12 allows a NULL pointer dereference     because rcu_dereference(root->node) can be     zero.(CVE-2019-19036)

  - ** DISPUTED ** In the Linux kernel 4.19.83, there is a     use-after-free (read) in the debugfs_remove function in     fs/debugfs/inode.c (which is used to remove a file or     directory in debugfs that was previously created with a     call to another debugfs function such as     debugfs_create_file). NOTE: Linux kernel developers     dispute this issue as not being an issue with debugfs,     instead this is an issue with misuse of debugfs within     blktrace.(CVE-2019-19770)

  - An issue was discovered in slc_bump in     drivers/net/can/slcan.c in the Linux kernel through     5.6.2. It allows attackers to read uninitialized     can_frame data, potentially containing sensitive     information from kernel stack memory, if the     configuration lacks CONFIG_INIT_STACK_ALL, aka     CID-b9258a2cece4.(CVE-2020-11494)

  - ** DISPUTED ** An issue was discovered in the Linux     kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c     has a stack-based out-of-bounds write because an empty     nodelist is mishandled during mount option parsing, aka     CID-aa9f7d5172fa. NOTE: Someone in the security     community disagrees that this is a vulnerability     because the issue 'is a bug in parsing mount options     which can only be specified by a privileged user, so     triggering the bug does not grant any powers not     already held.'.(CVE-2020-11565)

  - A flaw was found in the Linux kernel's implementation     of some networking protocols in IPsec, such as VXLAN     and GENEVE tunnels over IPv6. When an encrypted tunnel     is created between two hosts, the kernel isn't     correctly routing tunneled data over the encrypted link     rather sending the data unencrypted. This would allow     anyone in between the two endpoints to read the traffic     unencrypted. The main threat from this vulnerability is     to data confidentiality.(CVE-2020-1749)

  - An issue was discovered in the stv06xx subsystem in the     Linux kernel before 5.6.1.
    drivers/media/usb/gspca/stv06xx/stv06xx.c and     drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c     mishandle invalid descriptors, as demonstrated by a     NULL pointer dereference, aka     CID-485b06aadb93.(CVE-2020-11609)

  - An issue was discovered in the Linux kernel before     5.6.1. drivers/media/usb/gspca/ov519.c allows NULL     pointer dereferences in ov511_mode_init_regs and     ov518_mode_init_regs when there are zero endpoints, aka     CID-998912346c0d.(CVE-2020-11608)

  - In the Linux kernel before 5.4.12,     drivers/input/input.c has out-of-bounds writes via a     crafted keycode table, as demonstrated by     input_set_keycode, aka     CID-cb222aed03d7.(CVE-2019-20636)

  - In the Linux kernel before 5.6.1,     drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink     camera USB driver) mishandles invalid descriptors, aka     CID-a246b4d54770.(CVE-2020-11668)

  - In f2fs_xattr_generic_list of xattr.c, there is a     possible out of bounds read due to a missing bounds     check. This could lead to local information disclosure     with System execution privileges needed. User     interaction is not required for exploitation.Product:
    Android. Versions: Android kernel. Android ID:
    A-120551147.(CVE-2020-0067)

  - An issue was discovered in the Linux kernel before 5.2     on the powerpc platform.
    arch/powerpc/kernel/idle_book3s.S does not have     save/restore functionality for PNV_POWERSAVE_AMR,     PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR, aka     CID-53a712bae5dd.(CVE-2020-11669)

  - In the Linux kernel before 5.5.8, get_raw_socket in     drivers/vhost/net.c lacks validation of an sk_family     field, which might allow attackers to trigger kernel     stack corruption via crafted system     calls.(CVE-2020-10942)

  - In the Linux kernel 5.0.21, mounting a crafted btrfs     filesystem image, performing some operations, and     unmounting can lead to a use-after-free in     btrfs_queue_work in     fs/btrfs/async-thread.c.(CVE-2019-19377)

  - relay_open in kernel/relay.c in the Linux kernel     through 5.4.1 allows local users to cause a denial of     service (such as relay blockage) by triggering a NULL     alloc_percpu result.(CVE-2019-19462)

  - An issue was discovered in xfs_agf_verify in     fs/xfs/libxfs/xfs_alloc.c in the Linux kernel through     5.6.10. Attackers may trigger a sync of excessive     duration via an XFS v5 image with crafted metadata, aka     CID-d0c7feaf8767.(CVE-2020-12655)

  - The __mptctl_ioctl function in     drivers/message/fusion/mptctl.c in the Linux kernel     before 5.4.14 allows local users to hold an incorrect     lock during the ioctl operation and trigger a race     condition, i.e., a 'double fetch' vulnerability, aka     CID-28d76df18f0a. NOTE: the vendor states 'The security     impact of this bug is not as bad as it could have been     because these operations are all privileged and root     already has enormous destructive     power.'(CVE-2020-12652)

  - A pivot_root race condition in fs/namespace.c in the     Linux kernel 4.4.x before 4.4.221, 4.9.x before     4.9.221, 4.14.x before 4.14.178, 4.19.x before     4.19.119, and 5.x before 5.3 allows local users to     cause a denial of service (panic) by corrupting a     mountpoint reference counter.(CVE-2020-12114)

  - usb_sg_cancel in drivers/usb/core/message.c in the     Linux kernel before 5.6.8 has a use-after-free because     a transfer occurs without a reference, aka     CID-056ad39ee925.(CVE-2020-12464)

  - An issue was found in Linux kernel before 5.5.4.
    mwifiex_ret_wmm_get_status() in     drivers/net/wireless/marvell/mwifiex/wmm.c allows a     remote AP to trigger a heap-based buffer overflow     because of an incorrect memcpy, aka     CID-3a9b153c5591.(CVE-2020-12654)

  - An issue was found in Linux kernel before 5.5.4. The     mwifiex_cmd_append_vsie_tlv() function in     drivers/net/wireless/marvell/mwifiex/scan.c allows     local users to gain privileges or cause a denial of     service because of an incorrect memcpy and buffer     overflow, aka CID-b70261a288ea.(CVE-2020-12653)

  - An array overflow was discovered in mt76_add_fragment     in drivers/net/wireless/mediatek/mt76/dma.c in the     Linux kernel before 5.5.10, aka CID-b102f0c522cf. An     oversized packet with too many rx fragments can corrupt     memory of adjacent pages.(CVE-2020-12465)

  - An issue was discovered in the Linux kernel before     5.6.7. xdp_umem_reg in net/xdp/xdp_umem.c has an     out-of-bounds write (by a user with the CAP_NET_ADMIN     capability) because of a lack of headroom     validation.(CVE-2020-12659)

  - An issue was discovered in the Linux kernel through     5.6.11. btree_gc_coalesce in drivers/md/bcache/btree.c     has a deadlock if a coalescing operation     fails.(CVE-2020-12771)

  - An issue was discovered in the Linux kernel through     5.6.11. sg_write lacks an sg_remove_request call in a     certain failure case, aka     CID-83c6f2390040.(CVE-2020-12770)

  - A signal access-control issue was discovered in the     Linux kernel before 5.6.5, aka CID-7395ea4e65c2.
    Because exec_id in include/linux/sched.h is only 32     bits, an integer overflow can interfere with a     do_notify_parent protection mechanism. A child process     can send an arbitrary signal to a parent process in a     different security domain. Exploitation limitations     include the amount of elapsed time before an integer     overflow occurs, and the lack of scenarios where     signals to a parent process present a substantial     operational threat.(CVE-2020-12826)

  - A NULL pointer dereference flaw was found in the Linux     kernel's SELinux subsystem in versions before 5.7. This     flaw occurs while importing the Commercial IP Security     Option (CIPSO) protocol's category bitmap into the     SELinux extensible bitmap via the'     ebitmap_netlbl_import' routine. While processing the     CIPSO restricted bitmap tag in the     'cipso_v4_parsetag_rbm' routine, it sets the security     attribute to indicate that the category bitmap is     present, even if it has not been allocated. This issue     leads to a NULL pointer dereference issue while     importing the same category bitmap into SELinux. This     flaw allows a remote network user to crash the system     kernel, resulting in a denial of     service.(CVE-2020-10711)

  - gadget_dev_desc_UDC_store in     drivers/usb/gadget/configfs.c in the Linux kernel     through 5.6.13 relies on kstrdup without considering     the possibility of an internal '\0' value, which allows     attackers to trigger an out-of-bounds read, aka     CID-15753588bcd4.(CVE-2020-13143)

  - An issue was discovered in the Linux kernel before 5.2.
    There is a NULL pointer dereference in     tw5864_handle_frame() in     drivers/media/pci/tw5864/tw5864-video.c, which may     cause denial of service, aka     CID-2e7682ebfc75.(CVE-2019-20806)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Oracle Linux host is missing a security update for the Unbreakable Enterprise kernel package(s).

This update is now available for all supported architectures. For reference the original advisory text follows.

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

CVE-2015-8839

A race condition was found in the ext4 filesystem implementation. A local user could exploit this to cause a denial of service (filesystem corruption).

CVE-2018-14610, CVE-2018-14611, CVE-2018-14612, CVE-2018-14613

Wen Xu from SSLab at Gatech reported that crafted Btrfs volumes could trigger a crash (Oops) and/or out-of-bounds memory access. An attacker able to mount such a volume could use this to cause a denial of service or possibly for privilege escalation.

CVE-2019-5108

Mitchell Frank of Cisco discovered that when the IEEE 802.11 (WiFi) stack was used in AP mode with roaming, it would trigger roaming for a newly associated station before the station was authenticated. An attacker within range of the AP could use this to cause a denial of service, either by filling up a switching table or by redirecting traffic away from other stations.

CVE-2019-19319

Jungyeon discovered that a crafted filesystem can cause the ext4 implementation to deallocate or reallocate journal blocks. A user permitted to mount filesystems could use this to cause a denial of service (crash), or possibly for privilege escalation.

CVE-2019-19447

It was discovered that the ext4 filesystem driver did not safely handle unlinking of an inode that, due to filesystem corruption, already has a link count of 0. An attacker able to mount arbitrary ext4 volumes could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation.

CVE-2019-19768

Tristan Madani reported a race condition in the blktrace debug facility that could result in a use-after-free. A local user able to trigger removal of block devices could possibly use this to cause a denial of service (crash) or for privilege escalation.

CVE-2019-20636

The syzbot tool found that the input subsystem did not fully validate keycode changes, which could result in a heap out-of-bounds write. A local user permitted to access the device node for an input or VT device could possibly use this to cause a denial of service (crash or memory corruption) or for privilege escalation.

CVE-2020-0009

Jann Horn reported that the Android ashmem driver did not prevent read-only files from being memory-mapped and then remapped as read-write. However, Android drivers are not enabled in Debian kernel configurations.

CVE-2020-0543

Researchers at VU Amsterdam discovered that on some Intel CPUs supporting the RDRAND and RDSEED instructions, part of a random value generated by these instructions may be used in a later speculative execution on any core of the same physical CPU. Depending on how these instructions are used by applications, a local user or VM guest could use this to obtain sensitive information such as cryptographic keys from other users or VMs.

This vulnerability can be mitigated by a microcode update, either as part of system firmware (BIOS) or through the intel-microcode package in Debian's non-free archive section. This kernel update only provides reporting of the vulnerability and the option to disable the mitigation if it is not needed.

CVE-2020-1749

Xiumei Mu reported that some network protocols that can run on top of IPv6 would bypass the Transformation (XFRM) layer used by IPsec, IPcomp/IPcomp6, IPIP, and IPv6 Mobility. This could result in disclosure of information over the network, since it would not be encrypted or routed according to the system policy.

CVE-2020-2732

Paulo Bonzini discovered that the KVM implementation for Intel processors did not properly handle instruction emulation for L2 guests when nested virtualization is enabled. This could allow an L2 guest to cause privilege escalation, denial of service, or information leaks in the L1 guest.

CVE-2020-8647, CVE-2020-8649

The Hulk Robot tool found a potential MMIO out-of-bounds access in the vgacon driver. A local user permitted to access a virtual terminal (/dev/tty1 etc.) on a system using the vgacon driver could use this to cause a denial of service (crash or memory corruption) or possibly for privilege escalation.

CVE-2020-8648

The syzbot tool found a race condition in the the virtual terminal driver, which could result in a use-after-free. A local user permitted to access a virtual terminal could use this to cause a denial of service (crash or memory corruption) or possibly for privilege escalation.

CVE-2020-9383

Jordy Zomer reported an incorrect range check in the floppy driver which could lead to a static out-of-bounds access. A local user permitted to access a floppy drive could use this to cause a denial of service (crash or memory corruption) or possibly for privilege escalation.

CVE-2020-10690

It was discovered that the PTP hardware clock subsystem did not properly manage device lifetimes. Removing a PTP hardware clock from the system while a user process was using it could lead to a use-after-free. The security impact of this is unclear.

CVE-2020-10751

Dmitry Vyukov reported that the SELinux subsystem did not properly handle validating multiple messages, which could allow a privileged attacker to bypass SELinux netlink restrictions.

CVE-2020-10942

It was discovered that the vhost_net driver did not properly validate the type of sockets set as back-ends. A local user permitted to access /dev/vhost-net could use this to cause a stack corruption via crafted system calls, resulting in denial of service (crash) or possibly privilege escalation.

CVE-2020-11494

It was discovered that the slcan (serial line CAN) network driver did not fully initialise CAN headers for received packets, resulting in an information leak from the kernel to user-space or over the CAN network.

CVE-2020-11565

Entropy Moe reported that the shared memory filesystem (tmpfs) did not correctly handle an 'mpol' mount option specifying an empty node list, leading to a stack-based out-of-bounds write. If user namespaces are enabled, a local user could use this to cause a denial of service (crash) or possibly for privilege escalation.

CVE-2020-11608, CVE-2020-11609, CVE-2020-11668

It was discovered that the ov519, stv06xx, and xirlink_cit media drivers did not properly validate USB device descriptors. A physically present user with a specially constructed USB device could use this to cause a denial of service (crash) or possibly for privilege escalation.

CVE-2020-12114

Piotr Krysiuk discovered a race condition between the umount and pivot_root operations in the filesystem core (vfs). A local user with the CAP_SYS_ADMIN capability in any user namespace could use this to cause a denial of service (crash).

CVE-2020-12464

Kyungtae Kim reported a race condition in the USB core that can result in a use-after-free. It is not clear how this can be exploited, but it could result in a denial of service (crash or memory corruption) or privilege escalation.

CVE-2020-12652

Tom Hatskevich reported a bug in the mptfusion storage drivers. An ioctl handler fetched a parameter from user memory twice, creating a race condition which could result in incorrect locking of internal data structures. A local user permitted to access /dev/mptctl could use this to cause a denial of service (crash or memory corruption) or for privilege escalation.

CVE-2020-12653

It was discovered that the mwifiex WiFi driver did not sufficiently validate scan requests, resulting a potential heap buffer overflow. A local user with CAP_NET_ADMIN capability could use this to cause a denial of service (crash or memory corruption) or possibly for privilege escalation.

CVE-2020-12654

It was discovered that the mwifiex WiFi driver did not sufficiently validate WMM parameters received from an access point (AP), resulting a potential heap buffer overflow. A malicious AP could use this to cause a denial of service (crash or memory corruption) or possibly to execute code on a vulnerable system.

CVE-2020-12769

It was discovered that the spi-dw SPI host driver did not properly serialise access to its internal state. The security impact of this is unclear, and this driver is not included in Debian's binary packages.

CVE-2020-12770

It was discovered that the sg (SCSI generic) driver did not correctly release internal resources in a particular error case. A local user permitted to access an sg device could possibly use this to cause a denial of service (resource exhaustion).

CVE-2020-12826

Adam Zabrocki reported a weakness in the signal subsystem's permission checks. A parent process can choose an arbitary signal for a child process to send when it exits, but if the parent has executed a new program then the default SIGCHLD signal is sent. A local user permitted to run a program for several days could bypass this check, execute a setuid program, and then send an arbitrary signal to it.
Depending on the setuid programs installed, this could have some security impact.

CVE-2020-13143

Kyungtae Kim reported a potential heap out-of-bounds write in the USB gadget subsystem. A local user permitted to write to the gadget configuration filesystem could use this to cause a denial of service (crash or memory corruption) or potentially for privilege escalation.

For Debian 8 'Jessie', these problems have been fixed in version 3.16.84-1.

We recommend that you upgrade your linux packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote OracleVM system is missing necessary patches to address critical security updates :

  - Input: ff-memless - kill timer in destroy (Oliver     Neukum) [Orabug: 31213691] (CVE-2019-19524)

  - libertas: Fix two buffer overflows at parsing bss     descriptor (Wen Huang) [Orabug: 31351307]     (CVE-2019-14896) (CVE-2019-14897) (CVE-2019-14897)

  - binfmt_elf: use ELF_ET_DYN_BASE only for PIE (Kees Cook)     [Orabug: 31352068] (CVE-2017-1000370) (CVE-2017-1000371)     (CVE-2017-1000370)

  - NFSv4.0: Remove transport protocol name from non-UCS     client ID (Chuck Lever) [Orabug: 31357212]

  - NFSv4.0: Remove cl_ipaddr from non-UCS client ID (Chuck     Lever) 

  - xen/manage: enable C_A_D to force reboot (Dongli Zhang)     [Orabug: 31387466]

  - acpi: disable erst (Wengang Wang) [Orabug: 31194253]

  - mdio_bus: Fix use-after-free on device_register fails     (YueHaibing) [Orabug: 31222292] (CVE-2019-12819)

  - rds: ib: Fix dysfunctional long address resolve timeout     (Hakon Bugge) 

  - vxlan: don't migrate permanent fdb entries during learn     (Roopa Prabhu) 

  - USB: iowarrior: fix use-after-free on disconnect (Johan     Hovold) [Orabug: 31351061] (CVE-2019-19528)

  - usb: iowarrior: fix deadlock on disconnect (Oliver     Neukum) [Orabug: 31351061] (CVE-2019-19528)

  - mremap: properly flush TLB before releasing the page     (Linus Torvalds) [Orabug: 31352011] (CVE-2018-18281)

  - Input: add safety guards to input_set_keycode (Dmitry     Torokhov) [Orabug: 31200558] (CVE-2019-20636)

  - media: stv06xx: add missing descriptor sanity checks     (Johan Hovold) [Orabug: 31200579] (CVE-2020-11609)

  - media: ov519: add missing endpoint sanity checks (Johan     Hovold) [Orabug: 31213758] (CVE-2020-11608)

  - media: xirlink_cit: add missing descriptor sanity checks     (Johan Hovold) [Orabug: 31213767] (CVE-2020-11668)

  - mwifiex: pcie: Fix memory leak in     mwifiex_pcie_init_evt_ring (Navid Emamdoost) [Orabug:
    31263147] (CVE-2019-19057)

  - USB: core: Fix races in character device registration     and deregistraion (Alan Stern) [Orabug: 31317667]     (CVE-2019-19537)

Description of changes:

[4.1.12-124.39.5.el7uek]
- Input: ff-memless - kill timer in destroy() (Oliver Neukum)  [Orabug: 31213691]  {CVE-2019-19524}
- libertas: Fix two buffer overflows at parsing bss descriptor (Wen Huang)  [Orabug: 31351307]  {CVE-2019-14896} {CVE-2019-14897} {CVE-2019-14897}
- binfmt_elf: use ELF_ET_DYN_BASE only for PIE (Kees Cook)  [Orabug: 31352068]  {CVE-2017-1000370} {CVE-2017-1000371} {CVE-2017-1000370}
- NFSv4.0: Remove transport protocol name from non-UCS client ID (Chuck Lever)  [Orabug: 31357212]
- NFSv4.0: Remove cl_ipaddr from non-UCS client ID (Chuck Lever)  [Orabug: 31357212]
- xen/manage: enable C_A_D to force reboot (Dongli Zhang)  [Orabug: 31387466]

[4.1.12-124.39.4.el7uek]
- acpi: disable erst (Wengang Wang)  [Orabug: 31194253]
- mdio_bus: Fix use-after-free on device_register fails (YueHaibing)  [Orabug: 31222292]  {CVE-2019-12819}
- rds: ib: Fix dysfunctional long address resolve timeout (H&aring kon Bugge)  [Orabug: 31302708]
- vxlan: dont migrate permanent fdb entries during learn (Roopa Prabhu)  [Orabug: 31325318]
- USB: iowarrior: fix use-after-free on disconnect (Johan Hovold)  [Orabug: 31351061]  {CVE-2019-19528}
- usb: iowarrior: fix deadlock on disconnect (Oliver Neukum)  [Orabug: 31351061]  {CVE-2019-19528}
- mremap: properly flush TLB before releasing the page (Linus Torvalds)  [Orabug: 31352011]  {CVE-2018-18281}

[4.1.12-124.39.3.el7uek]
- Input: add safety guards to input_set_keycode() (Dmitry Torokhov)  [Orabug: 31200558]  {CVE-2019-20636}
- media: stv06xx: add missing descriptor sanity checks (Johan Hovold)  [Orabug: 31200579]  {CVE-2020-11609}
- media: ov519: add missing endpoint sanity checks (Johan Hovold)  [Orabug: 31213758]  {CVE-2020-11608}
- media: xirlink_cit: add missing descriptor sanity checks (Johan Hovold)  [Orabug: 31213767]  {CVE-2020-11668}
- mwifiex: pcie: Fix memory leak in mwifiex_pcie_init_evt_ring (Navid Emamdoost)  [Orabug: 31263147]  {CVE-2019-19057}
- USB: core: Fix races in character device registration and deregistraion (Alan Stern)  [Orabug: 31317667]  {CVE-2019-19537}

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - In the Linux kernel 5.0.21, mounting a crafted btrfs     filesystem image, performing some operations, and     unmounting can lead to a use-after-free in     btrfs_queue_work in     fs/btrfs/async-thread.c.(CVE-2019-19377)

  - The fix for CVE-2019-11599, affecting the Linux kernel     before 5.0.10 was not complete. A local user could use     this flaw to obtain sensitive information, cause a     denial of service, or possibly have other unspecified     impacts by triggering a race condition with     mmget_not_zero or get_task_mm calls.(CVE-2019-14898)

  - A pivot_root race condition in fs/namespace.c in the     Linux kernel 4.4.x before 4.4.221, 4.9.x before     4.9.221, 4.14.x before 4.14.178, 4.19.x before     4.19.119, and 5.x before 5.3 allows local users to     cause a denial of service (panic) by corrupting a     mountpoint reference counter.(CVE-2020-12114)

  - usb_sg_cancel in drivers/usb/core/message.c in the     Linux kernel before 5.6.8 has a use-after-free because     a transfer occurs without a reference, aka     CID-056ad39ee925.(CVE-2020-12464)

  - The __mptctl_ioctl function in     drivers/message/fusion/mptctl.c in the Linux kernel     before 5.4.14 allows local users to hold an incorrect     lock during the ioctl operation and trigger a race     condition, i.e., a 'double fetch' vulnerability, aka     CID-28d76df18f0a. NOTE: the vendor states 'The security     impact of this bug is not as bad as it could have been     because these operations are all privileged and root     already has enormous destructive     power.'(CVE-2020-12652)

  - An issue was found in Linux kernel before 5.5.4. The     mwifiex_cmd_append_vsie_tlv() function in     drivers/net/wireless/marvell/mwifiex/scan.c allows     local users to gain privileges or cause a denial of     service because of an incorrect memcpy and buffer     overflow, aka CID-b70261a288ea.(CVE-2020-12653)

  - An issue was found in Linux kernel before 5.5.4.
    mwifiex_ret_wmm_get_status() in     drivers/net/wireless/marvell/mwifiex/wmm.c allows a     remote AP to trigger a heap-based buffer overflow     because of an incorrect memcpy, aka     CID-3a9b153c5591.(CVE-2020-12654)

  - An issue was discovered in xfs_agf_verify in     fs/xfs/libxfs/xfs_alloc.c in the Linux kernel through     5.6.10. Attackers may trigger a sync of excessive     duration via an XFS v5 image with crafted metadata, aka     CID-d0c7feaf8767.(CVE-2020-12655)

  - In nfc_llcp_build_sdreq_tlv of llcp_commands.c, there     is a possible out of bounds write due to a missing     bounds check. This could lead to local escalation of     privilege with System execution privileges needed. User     interaction is not needed for exploitation. Product:
    Android. Versions: Android kernel. Android ID:
    A-73083945.(CVE-2018-9518)

  - An issue was discovered in slc_bump in     drivers/net/can/slcan.c in the Linux kernel through     5.6.2. It allows attackers to read uninitialized     can_frame data, potentially containing sensitive     information from kernel stack memory, if the     configuration lacks CONFIG_INIT_STACK_ALL, aka     CID-b9258a2cece4.(CVE-2020-11494)

  - In the Android kernel in sync debug fs driver there is     a kernel pointer leak due to the usage of printf with     %p. This could lead to local information disclosure     with system execution privileges needed. User     interaction is not needed for     exploitation.(CVE-2019-9444)

  - In the Linux kernel before 5.4.12,     drivers/input/input.c has out-of-bounds writes via a     crafted keycode table, as demonstrated by     input_set_keycode, aka     CID-cb222aed03d7.(CVE-2019-20636)

  - An issue was discovered in the Linux kernel through     5.6.2. mpol_parse_str in mm/mempolicy.c has a     stack-based out-of-bounds write because an empty     nodelist is mishandled during mount option parsing, aka     CID-aa9f7d5172fa. NOTE: Someone in the security     community disagrees that this is a vulnerability     because the issue 'is a bug in parsing mount options     which can only be specified by a privileged user, so     triggering the bug does not grant any powers not     already held.'.(CVE-2020-11565)

  - An issue was discovered in the Linux kernel before     5.6.1. drivers/media/usb/gspca/ov519.c allows NULL     pointer dereferences in ov511_mode_init_regs and     ov518_mode_init_regs when there are zero endpoints, aka     CID-998912346c0d.(CVE-2020-11608)

  - An issue was discovered in the stv06xx subsystem in the     Linux kernel before 5.6.1.
    drivers/media/usb/gspca/stv06xx/stv06xx.c and     drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c     mishandle invalid descriptors, as demonstrated by a     NULL pointer dereference, aka     CID-485b06aadb93.(CVE-2020-11609)

  - In the Linux kernel before 5.5.8, get_raw_socket in     drivers/vhost/net.c lacks validation of an sk_family     field, which might allow attackers to trigger kernel     stack corruption via crafted system     calls.(CVE-2020-10942)

  - drivers/gpu/drm/radeon/radeon_display.c in the Linux     kernel 5.2.14 does not check the alloc_workqueue return     value, leading to a NULL pointer dereference. NOTE: A     third-party software maintainer states that the work     queue allocation is happening during device     initialization, which for a graphics card occurs during     boot. It is not attacker controllable and OOM at that     time is highly unlikely.(CVE-2019-16230)

  - In the netlink driver, there is a possible out of     bounds write due to a race condition. This could lead     to local escalation of privilege with System execution     privileges needed. User interaction is not needed for     exploitation.Product: AndroidVersions: Android     kernelAndroid ID: A-65025077(CVE-2020-0066)

  - The kernel in Red Hat Enterprise Linux 7 and MRG-2 does     not clear garbage data for SG_IO buffer, which may     leaking sensitive information to     userspace.(CVE-2014-8181)

  - btrfs_root_node in fs/btrfs/ctree.c in the Linux kernel     through 5.3.12 allows a NULL pointer dereference     because rcu_dereference(root->node) can be     zero.(CVE-2019-19036)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the kernel packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - In the Linux kernel before 5.2.9, there is an info-leak     bug that can be caused by a malicious USB device in the     drivers/net/can/usb/peak_usb/pcan_usb_pro.c driver, aka     CID-ead16e53c2f0.(CVE-2019-19536)

  - In the Linux kernel before 5.2.9, there is an info-leak     bug that can be caused by a malicious USB device in the     drivers/net/can/usb/peak_usb/pcan_usb_fd.c driver, aka     CID-30a8beeb3042.(CVE-2019-19535)

  - vcs_write in drivers/tty/vt/vc_screen.c in the Linux     kernel through 5.3.13 does not prevent write access to     vcsu devices, aka CID-0c9acb1af77a.(CVE-2019-19252)

  - In the AppleTalk subsystem in the Linux kernel before     5.1, there is a potential NULL pointer dereference     because register_snap_client may return NULL. This will     lead to denial of service in net/appletalk/aarp.c and     net/appletalk/ddp.c, as demonstrated by     unregister_snap_client, aka     CID-9804501fa122.(CVE-2019-19227)

  - A memory leak in the adis_update_scan_mode() function     in drivers/iio/imu/adis_buffer.c in the Linux kernel     before 5.3.9 allows attackers to cause a denial of     service (memory consumption), aka     CID-ab612b1daf41.(CVE-2019-19060)

  - In the Linux kernel before 5.3.11, there is an     info-leak bug that can be caused by a malicious USB     device in the     drivers/net/can/usb/peak_usb/pcan_usb_core.c driver,     aka CID-f7a1337f0d29.(CVE-2019-19534)

  - In the Linux kernel before 5.3.11, there is a     use-after-free bug that can be caused by a malicious     USB device in the drivers/net/can/usb/mcba_usb.c     driver, aka CID-4d6636498c41.(CVE-2019-19529)

  - In the Linux kernel before 5.3.9, there is a     use-after-free bug that can be caused by a malicious     USB device in the drivers/nfc/pn533/usb.c driver, aka     CID-6af3aa57a098.(CVE-2019-19526)

  - In the Linux kernel before 5.3.6, there is a     use-after-free bug that can be caused by a malicious     USB device in the drivers/net/ieee802154/atusb.c     driver, aka CID-7fd25e6fc035.(CVE-2019-19525)

  - In the Linux kernel before 5.3.9, there are multiple     out-of-bounds write bugs that can be caused by a     malicious USB device in the Linux kernel HID drivers,     aka CID-d9d4b1e46d95. This affects     drivers/hid/hid-axff.c, drivers/hid/hid-dr.c,     drivers/hid/hid-emsff.c, drivers/hid/hid-gaff.c,     drivers/hid/hid-holtekff.c, drivers/hid/hid-lg2ff.c,     drivers/hid/hid-lg3ff.c, drivers/hid/hid-lg4ff.c,     drivers/hid/hid-lgff.c,     drivers/hid/hid-logitech-hidpp.c,     drivers/hid/hid-microsoft.c, drivers/hid/hid-sony.c,     drivers/hid/hid-tmff.c, and     drivers/hid/hid-zpff.c.(CVE-2019-19532)

  - In the Linux kernel before 5.2.10, there is a     use-after-free bug that can be caused by a malicious     USB device in the drivers/hid/usbhid/hiddev.c driver,     aka CID-9c09b214f30e.(CVE-2019-19527)

  - ** DISPUTED ** The Linux kernel through 5.0.7, when     CONFIG_IA32_AOUT is enabled and ia32_aout is loaded,     allows local users to bypass ASLR on setuid a.out     programs (if any exist) because install_exec_creds() is     called too late in load_aout_binary() in     fs/binfmt_aout.c, and thus the ptrace_may_access()     check has a race condition when reading /proc/pid/stat.
    NOTE: the software maintainer disputes that this is a     vulnerability because ASLR for a.out format executables     has never been supported.(CVE-2019-11191)

  - In the Linux kernel before 5.3.12, there is a     use-after-free bug that can be caused by a malicious     USB device in the drivers/input/ff-memless.c driver,     aka CID-fa3a5a1880c9.(CVE-2019-19524)

  - drivers/net/wireless/marvell/libertas/if_sdio.c in the     Linux kernel 5.2.14 does not check the alloc_workqueue     return value, leading to a NULL pointer     dereference.(CVE-2019-16232)

  - drivers/net/fjes/fjes_main.c in the Linux kernel 5.2.14     does not check the alloc_workqueue return value,     leading to a NULL pointer dereference.(CVE-2019-16231)

  - ** DISPUTED **     drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c in the Linux     kernel 5.2.14 does not check the alloc_workqueue return     value, leading to a NULL pointer dereference. NOTE: The     security community disputes this issues as not being     serious enough to be deserving a CVE     id.(CVE-2019-16229)

  - Linux kernel CIFS implementation, version 4.9.0 is     vulnerable to a relative paths injection in directory     entry lists.(CVE-2019-10220)

  - A heap overflow flaw was found in the Linux kernel, all     versions 3.x.x and 4.x.x before 4.18.0, in Marvell WiFi     chip driver. The vulnerability allows a remote attacker     to cause a system crash, resulting in a denial of     service, or execute arbitrary code. The highest threat     with this vulnerability is with the availability of the     system. If code execution occurs, the code will run     with the permissions of root. This will affect both     confidentiality and integrity of files on the     system.(CVE-2019-14901)

  - The Linux kernel before 5.4.2 mishandles     ext4_expand_extra_isize, as demonstrated by     use-after-free errors in __ext4_expand_extra_isize and     ext4_xattr_set_entry, related to fs/ext4/inode.c and     fs/ext4/super.c, aka CID-4ea99936a163.(CVE-2019-19767)

  - A heap-based buffer overflow was discovered in the     Linux kernel, all versions 3.x.x and 4.x.x before     4.18.0, in Marvell WiFi chip driver. The flaw could     occur when the station attempts a connection     negotiation during the handling of the remote devices     country settings. This could allow the remote device to     cause a denial of service (system crash) or possibly     execute arbitrary code.(CVE-2019-14895)

  - Linux Kernel could allow a local authenticated attacker     to obtain sensitive information, caused by a     Transaction Asynchronous Abort (TAA) h/w issue in KVM.
    By sending a specially-crafted request, an attacker     could exploit this vulnerability to obtain sensitive     information, and use this information to launch further     attacks against the affected system.(CVE-2019-19338)

  - TSX Asynchronous Abort condition on some CPUs utilizing     speculative execution may allow an authenticated user     to potentially enable information disclosure via a side     channel with local access.(CVE-2019-11135)

  - An out-of-bounds memory write issue was found in the     Linux Kernel, version 3.13 through 5.4, in the way the     Linux kernel's KVM hypervisor handled the     'KVM_GET_EMULATED_CPUID' ioctl(2) request to get CPUID     features emulated by the KVM hypervisor. A user or     process able to access the '/dev/kvm' device could use     this flaw to crash the system, resulting in a denial of     service.(CVE-2019-19332)

  - kernel/sched/fair.c in the Linux kernel before 5.3.9,     when cpu.cfs_quota_us is used (e.g., with Kubernetes),     allows attackers to cause a denial of service against     non-cpu-bound applications by generating a workload     that triggers unwanted slice expiration, aka     CID-de53fd7aedb1. (In other words, although this slice     expiration would typically be seen with benign     workloads, it is possible that an attacker could     calculate how many stray requests are required to force     an entire Kubernetes cluster into a low-performance     state caused by slice expiration, and ensure that a     DDoS attack sent that number of stray requests. An     attack does not affect the stability of the kernel it     only causes mismanagement of application     execution.)(CVE-2019-19922)

  - A stack-based buffer overflow was found in the Linux     kernel, version kernel-2.6.32, in Marvell WiFi chip     driver. An attacker is able to cause a denial of     service (system crash) or, possibly execute arbitrary     code, when a STA works in IBSS mode (allows connecting     stations together without the use of an AP) and     connects to another STA.(CVE-2019-14897)

  - A heap-based buffer overflow vulnerability was found in     the Linux kernel, version kernel-2.6.32, in Marvell     WiFi chip driver. A remote attacker could cause a     denial of service (system crash) or, possibly execute     arbitrary code, when the lbs_ibss_join_existing     function is called after a STA connects to an     AP.(CVE-2019-14896)

  - In the Linux kernel through 5.4.6, there are     information leaks of uninitialized memory to a USB     device in the     drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c     driver, aka CID-da2311a6385c.(CVE-2019-19947)

  - In the Linux kernel before 5.1, there is a memory leak     in __feat_register_sp() in net/dccp/feat.c, which may     cause denial of service, aka     CID-1d3ff0950e2b.(CVE-2019-20096)

  - mwifiex_tm_cmd in     drivers/net/wireless/marvell/mwifiex/cfg80211.c in the     Linux kernel before 5.1.6 has some error-handling cases     that did not free allocated hostcmd memory, aka     CID-003b686ace82. This will cause a memory leak and     denial of service.(CVE-2019-20095)

  - An exploitable denial-of-service vulnerability exists     in the Linux kernel prior to mainline 5.3. An attacker     could exploit this vulnerability by triggering AP to     send IAPP location updates for stations before the     required authentication process has completed. This     could lead to different denial-of-service scenarios,     either by causing CAM table attacks, or by leading to     traffic flapping if faking already existing clients in     other nearby APs of the same wireless infrastructure.
    An attacker can forge Authentication and Association     Request packets to trigger this     vulnerability.(CVE-2019-5108)

  - In a Linux KVM guest that has PV TLB enabled, a process     in the guest kernel may be able to read memory     locations from another process in the same guest. This     problem is limit to the host running linux kernel 4.10     with a guest running linux kernel 4.16 or later. The     problem mainly affects AMD processors but Intel CPUs     cannot be ruled out.(CVE-2019-3016)

  - fs/namei.c in the Linux kernel before 5.5 has a     may_create_in_sticky use-after-free, which allows local     users to cause a denial of service (OOPS) or possibly     obtain sensitive information from kernel memory, aka     CID-d0cb50185ae9. One attack vector may be an open     system call for a UNIX domain socket, if the socket is     being moved to a new parent directory and its old     parent directory is being removed.(CVE-2020-8428)

  - There is a use-after-free vulnerability in the Linux     kernel through 5.5.2 in the n_tty_receive_buf_common     function in drivers/tty/n_tty.c.(CVE-2020-8648)

  - An issue was discovered in the Linux kernel through     5.5.6. set_fdc in drivers/block/floppy.c leads to a     wait_til_ready out-of-bounds read because the FDC index     is not checked for errors before assigning it, aka     CID-2e90ca68b0d2.(CVE-2020-9383)

  - There is a use-after-free vulnerability in the Linux     kernel through 5.5.2 in the vgacon_invert_region     function in     drivers/video/console/vgacon.c.(CVE-2020-8649)

  - There is a use-after-free vulnerability in the Linux     kernel through 5.5.2 in the vc_do_resize function in     drivers/tty/vt/vt.c.(CVE-2020-8647)

  - In the Linux kernel 5.0.21, mounting a crafted ext4     filesystem image, performing some operations, and     unmounting can lead to a use-after-free in     ext4_put_super in fs/ext4/super.c, related to     dump_orphan_list in fs/ext4/super.c.(CVE-2019-19447)

  - A flaw was discovered in the way that the KVM     hypervisor handled instruction emulation for an L2     guest when nested virtualisation is enabled. Under some     circumstances, an L2 guest may trick the L0 guest into     accessing sensitive L1 resources that should be     inaccessible to the L2 guest.(CVE-2020-2732)

  - In the Linux kernel before 5.3.11, sound/core/timer.c     has a use-after-free caused by erroneous code     refactoring, aka CID-e7af6307a8a5. This is related to     snd_timer_open and snd_timer_close_locked. The timeri     variable was originally intended to be for a newly     created timer instance, but was used for a different     purpose after refactoring.(CVE-2019-19807)

  - In the Linux kernel 5.4.0-rc2, there is a     use-after-free (read) in the __blk_add_trace function     in kernel/trace/blktrace.c (which is used to fill out a     blk_io_trace structure and place it in a per-cpu     sub-buffer).(CVE-2019-19768)

  - In the Linux kernel 5.0.21, mounting a crafted f2fs     filesystem image can cause a NULL pointer dereference     in f2fs_recover_fsync_data in fs/f2fs/recovery.c. This     is related to F2FS_P_SB in     fs/f2fs/f2fs.h.(CVE-2019-19815)

  - ** DISPUTED ** __btrfs_free_extent in     fs/btrfs/extent-tree.c in the Linux kernel through     5.3.12 calls btrfs_print_leaf in a certain ENOENT case,     which allows local users to obtain potentially     sensitive information about register values via the     dmesg program. NOTE: The BTRFS development team     disputes this issues as not being a vulnerability     because '1) The kernel provide facilities to restrict     access to dmesg - dmesg_restrict=1 sysctl option. So     it's really up to the system administrator to judge     whether dmesg access shall be disallowed or not. 2)     WARN/WARN_ON are widely used macros in the linux     kernel. If this CVE is considered valid this would mean     there are literally thousands CVE lurking in the kernel
    - something which clearly is not the     case.'(CVE-2019-19039)

  - ext4_empty_dir in fs/ext4/namei.c in the Linux kernel     through 5.3.12 allows a NULL pointer dereference     because ext4_read_dirblock(inode,0,DIRENT_HTREE) can be     zero.(CVE-2019-19037)

  - btrfs_root_node in fs/btrfs/ctree.c in the Linux kernel     through 5.3.12 allows a NULL pointer dereference     because rcu_dereference(root->node) can be     zero.(CVE-2019-19036)

  - In the Linux kernel 4.19.83, there is a use-after-free     (read) in the debugfs_remove function in     fs/debugfs/inode.c (which is used to remove a file or     directory in debugfs that was previously created with a     call to another debugfs function such as     debugfs_create_file).(CVE-2019-19770)

  - An issue was discovered in slc_bump in     drivers/net/can/slcan.c in the Linux kernel through     5.6.2. It allows attackers to read uninitialized     can_frame data, potentially containing sensitive     information from kernel stack memory, if the     configuration lacks CONFIG_INIT_STACK_ALL, aka     CID-b9258a2cece4.(CVE-2020-11494)

  - An issue was discovered in the Linux kernel through     5.6.2. mpol_parse_str in mm/mempolicy.c has a     stack-based out-of-bounds write because an empty     nodelist is mishandled during mount option parsing, aka     CID-aa9f7d5172fa.(CVE-2020-11565)

  - A flaw was found in the Linux kernel's implementation     of some networking protocols in IPsec, such as VXLAN     and GENEVE tunnels over IPv6. When an encrypted tunnel     is created between two hosts, the kernel isn't     correctly routing tunneled data over the encrypted link     rather sending the data unencrypted. This would allow     anyone in between the two endpoints to read the traffic     unencrypted. The main threat from this vulnerability is     to data confidentiality.(CVE-2020-1749)

  - An issue was discovered in the stv06xx subsystem in the     Linux kernel before 5.6.1.
    drivers/media/usb/gspca/stv06xx/stv06xx.c and     drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c     mishandle invalid descriptors, as demonstrated by a     NULL pointer dereference, aka     CID-485b06aadb93.(CVE-2020-11609)

  - An issue was discovered in the Linux kernel before     5.6.1. drivers/media/usb/gspca/ov519.c allows NULL     pointer dereferences in ov511_mode_init_regs and     ov518_mode_init_regs when there are zero endpoints, aka     CID-998912346c0d.(CVE-2020-11608)

  - In the Linux kernel before 5.4.12,     drivers/input/input.c has out-of-bounds writes via a     crafted keycode table, as demonstrated by     input_set_keycode, aka     CID-cb222aed03d7.(CVE-2019-20636)

  - In the Linux kernel before 5.6.1,     drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink     camera USB driver) mishandles invalid descriptors, aka     CID-a246b4d54770.(CVE-2020-11668)

  - An issue was discovered in the Linux kernel through     5.6.2. mpol_parse_str in mm/mempolicy.c has a     stack-based out-of-bounds write because an empty     nodelist is mishandled during mount option parsing, aka     CID-aa9f7d5172fa.(CVE-2020-0067)

  - An issue was discovered in the Linux kernel before 5.2     on the powerpc platform.
    arch/powerpc/kernel/idle_book3s.S does not have     save/restore functionality for PNV_POWERSAVE_AMR,     PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR, aka     CID-53a712bae5dd.(CVE-2020-11669)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - In f2fs_xattr_generic_list of xattr.c, there is a     possible out of bounds read due to a missing bounds     check. This could lead to local information disclosure     with System execution privileges needed. User     interaction is not required for     exploitation.(CVE-2020-0067)

  - An issue was discovered in the Linux kernel before 5.2     on the powerpc platform.
    arch/powerpc/kernel/idle_book3s.S does not have     save/restore functionality for PNV_POWERSAVE_AMR,     PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR, aka     CID-53a712bae5dd.(CVE-2020-11669)

  - In the Linux kernel before 5.6.1,     drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink     camera USB driver) mishandles invalid descriptors, aka     CID-a246b4d54770.(CVE-2020-11668)

  - In the Linux kernel before 5.4.12,     drivers/input/input.c has out-of-bounds writes via a     crafted keycode table, as demonstrated by     input_set_keycode, aka     CID-cb222aed03d7.(CVE-2019-20636)

  - An issue was discovered in the Linux kernel before     5.6.1. drivers/media/usb/gspca/ov519.c allows NULL     pointer dereferences in ov511_mode_init_regs and     ov518_mode_init_regs when there are zero endpoints, aka     CID-998912346c0d.(CVE-2020-11608)

  - An issue was discovered in the stv06xx subsystem in the     Linux kernel before 5.6.1.
    drivers/media/usb/gspca/stv06xx/stv06xx.c and     drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c     mishandle invalid descriptors, as demonstrated by a     NULL pointer dereference, aka     CID-485b06aadb93.(CVE-2020-11609)

  - A flaw was found in the Linux kernel's implementation     of some networking protocols in IPsec, such as VXLAN     and GENEVE tunnels over IPv6. When an encrypted tunnel     is created between two hosts, the kernel isn't     correctly routing tunneled data over the encrypted link     rather sending the data unencrypted. This would allow     anyone in between the two endpoints to read the traffic     unencrypted. The main threat from this vulnerability is     to data confidentiality.(CVE-2020-1749)

  - An issue was discovered in the Linux kernel through     5.6.2. mpol_parse_str in mm/mempolicy.c has a     stack-based out-of-bounds write because an empty     nodelist is mishandled during mount option parsing, aka     CID-aa9f7d5172fa.(CVE-2020-11565)

  - An issue was discovered in slc_bump in     drivers/net/can/slcan.c in the Linux kernel through     5.6.2. It allows attackers to read uninitialized     can_frame data, potentially containing sensitive     information from kernel stack memory, if the     configuration lacks CONFIG_INIT_STACK_ALL, aka     CID-b9258a2cece4.(CVE-2020-11494)

  - btrfs_root_node in fs/btrfs/ctree.c in the Linux kernel     through 5.3.12 allows a NULL pointer dereference     because rcu_dereference(root->node) can be     zero.(CVE-2019-19036)

  - ext4_empty_dir in fs/ext4/namei.c in the Linux kernel     through 5.3.12 allows a NULL pointer dereference     because ext4_read_dirblock(inode,0,DIRENT_HTREE) can be     zero.(CVE-2019-19037)

  - __btrfs_free_extent in fs/btrfs/extent-tree.c in the     Linux kernel through 5.3.12 calls btrfs_print_leaf in a     certain ENOENT case, which allows local users to obtain     potentially sensitive information about register values     via the dmesg program.(CVE-2019-19039)

  - In the Linux kernel 5.0.21, mounting a crafted f2fs     filesystem image can cause a NULL pointer dereference     in f2fs_recover_fsync_data in fs/f2fs/recovery.c. This     is related to F2FS_P_SB in     fs/f2fs/f2fs.h.(CVE-2019-19815)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
147318	NewStart CGSL MAIN 6.02 : kernel Multiple Vulnerabilities (NS-SA-2021-0078)	Nessus	NewStart CGSL Local Security Checks	high
145806	CentOS 8 : kernel (CESA-2020:4431)	Nessus	CentOS Local Security Checks	high
144831	EulerOS Virtualization 3.0.2.6 : kernel (EulerOS-SA-2021-1056)	Nessus	Huawei Local Security Checks	critical
144754	RHEL 7 : kernel (RHSA-2021:0019)	Nessus	Red Hat Local Security Checks	high
144554	RHEL 7 : kernel (RHSA-2020:5656)	Nessus	Red Hat Local Security Checks	high
144280	RHEL 7 : kernel (RHSA-2020:5430)	Nessus	Red Hat Local Security Checks	high
143086	RHEL 7 : kernel-alt (RHSA-2020:2854)	Nessus	Red Hat Local Security Checks	high
142430	RHEL 8 : kernel (RHSA-2020:4431)	Nessus	Red Hat Local Security Checks	high
142382	RHEL 8 : kernel-rt (RHSA-2020:4609)	Nessus	Red Hat Local Security Checks	high
141727	Scientific Linux Security Update : kernel on SL7.x x86_64 (20201001)	Nessus	Scientific Linux Local Security Checks	high
141619	CentOS 7 : kernel (CESA-2020:4060)	Nessus	CentOS Local Security Checks	high
141057	RHEL 7 : kernel (RHSA-2020:4060)	Nessus	Red Hat Local Security Checks	high
141026	RHEL 7 : kernel-rt (RHSA-2020:4062)	Nessus	Red Hat Local Security Checks	high
140917	EulerOS 2.0 SP3 : kernel (EulerOS-SA-2020-2150)	Nessus	Huawei Local Security Checks	high
137932	EulerOS Virtualization 3.0.6.0 : kernel (EulerOS-SA-2020-1713)	Nessus	Huawei Local Security Checks	high
137805	EulerOS Virtualization for ARM 64 3.0.6.0 : kernel (EulerOS-SA-2020-1698)	Nessus	Huawei Local Security Checks	high
137516	EulerOS 2.0 SP2 : kernel (EulerOS-SA-2020-1674)	Nessus	Huawei Local Security Checks	critical
137291	Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5715)	Nessus	Oracle Linux Local Security Checks	critical
137283	Debian DLA-2241-2 : linux security update	Nessus	Debian Local Security Checks	high
137217	OracleVM 3.4 : Unbreakable / etc (OVMSA-2020-0020) (Stack Clash)	Nessus	OracleVM Local Security Checks	critical
137173	Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5708) (Stack Clash)	Nessus	Oracle Linux Local Security Checks	critical
137024	EulerOS 2.0 SP5 : kernel (EulerOS-SA-2020-1606)	Nessus	Huawei Local Security Checks	high
136239	EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2020-1536)	Nessus	Huawei Local Security Checks	critical
135741	EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1508)	Nessus	Huawei Local Security Checks	high

CVE-2019-20636

HIGH

Description

References

Details

Risk Information

CVSS v2.0

CVSS v3.0

Vulnerable Software

Configuration 1

Tenable Plugins

high

high

critical

high

high

high

high

high

high

high

high

high

high

high

high

high

critical

critical

high

critical

critical

high

critical

high