The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4387-1 advisory.

    It was discovered that the F2FS file system implementation in the Linux kernel did not properly perform     bounds checking on xattrs in some situations. A local attacker could possibly use this to expose sensitive     information (kernel memory). (CVE-2020-0067)

    It was discovered that memory contents previously stored in microarchitectural special registers after     RDRAND, RDSEED, and SGX EGETKEY read operations on Intel client and Xeon E3 processors may be briefly     exposed to processes on the same or different processor cores. A local attacker could use this to expose     sensitive information. (CVE-2020-0543)

    Piotr Krysiuk discovered that race conditions existed in the file system implementation in the Linux     kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-12114)

    It was discovered that the USB susbsystem's scatter-gather implementation in the Linux kernel did not     properly take data references in some situations, leading to a use-after-free. A physically proximate     attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
    (CVE-2020-12464)

    Bui Quang Minh discovered that the XDP socket implementation in the Linux kernel did not properly validate     meta-data passed from user space, leading to an out-of-bounds write vulnerability. A local attacker with     the CAP_NET_ADMIN capability could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2020-12659)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4389-1 advisory.

    It was discovered that the F2FS file system implementation in the Linux kernel did not properly perform     bounds checking on xattrs in some situations. A local attacker could possibly use this to expose sensitive     information (kernel memory). (CVE-2020-0067)

    It was discovered that memory contents previously stored in microarchitectural special registers after     RDRAND, RDSEED, and SGX EGETKEY read operations on Intel client and Xeon E3 processors may be briefly     exposed to processes on the same or different processor cores. A local attacker could use this to expose     sensitive information. (CVE-2020-0543)

    Piotr Krysiuk discovered that race conditions existed in the file system implementation in the Linux     kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-12114)

    It was discovered that the USB susbsystem's scatter-gather implementation in the Linux kernel did not     properly take data references in some situations, leading to a use-after-free. A physically proximate     attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
    (CVE-2020-12464)

    Bui Quang Minh discovered that the XDP socket implementation in the Linux kernel did not properly validate     meta-data passed from user space, leading to an out-of-bounds write vulnerability. A local attacker with     the CAP_NET_ADMIN capability could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2020-12659)

    Dmitry Vyukov discovered that the SELinux netlink security hook in the Linux kernel did not validate     messages in some situations. A privileged attacker could use this to bypass SELinux netlink restrictions.
    (CVE-2020-10751)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4391-1 advisory.

    It was discovered that the ext4 file system implementation in the Linux kernel did not properly handle     setxattr operations in some situations. A local attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2019-19319)

    It was discovered that memory contents previously stored in microarchitectural special registers after     RDRAND, RDSEED, and SGX EGETKEY read operations on Intel client and Xeon E3 processors may be briefly     exposed to processes on the same or different processor cores. A local attacker could use this to expose     sensitive information. (CVE-2020-0543)

    Piotr Krysiuk discovered that race conditions existed in the file system implementation in the Linux     kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-12114)

    It was discovered that the USB susbsystem's scatter-gather implementation in the Linux kernel did not     properly take data references in some situations, leading to a use-after-free. A physically proximate     attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
    (CVE-2020-12464)

    It was discovered that the DesignWare SPI controller driver in the Linux kernel contained a race     condition. A local attacker could possibly use this to cause a denial of service (system crash).
    (CVE-2020-12769)

    It was discovered that the exit signaling implementation in the Linux kernel contained an integer     overflow. A local attacker could use this to cause a denial of service (arbitrary application crash).
    (CVE-2020-12826)

    Xiumei Mu discovered that the IPSec implementation in the Linux kernel did not properly encrypt IPv6     traffic in some situations. An attacker could use this to expose sensitive information. (CVE-2020-1749)

    Dmitry Vyukov discovered that the SELinux netlink security hook in the Linux kernel did not validate     messages in some situations. A privileged attacker could use this to bypass SELinux netlink restrictions.
    (CVE-2020-10751)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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

The SUSE Linux Enterprise 15 SP1 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or 'CrossTalk' (bsc#1154824).

CVE-2020-13143: Fixed an out-of-bounds read in gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c (bsc#1171982).

CVE-2020-12769: Fixed an issue which could have allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one (bsc#1171983).

CVE-2020-12768: Fixed a memory leak in svm_cpu_uninit in arch/x86/kvm/svm.c (bsc#1171736).

CVE-2020-12659: Fixed an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) due to improper headroom validation (bsc#1171214).

CVE-2020-12657: An a use-after-free in block/bfq-iosched.c (bsc#1171205).

CVE-2020-12656: Fixed an improper handling of certain domain_release calls leadingch could have led to a memory leak (bsc#1171219).

CVE-2020-12655: Fixed an issue which could have allowed attackers to trigger a sync of excessive duration via an XFS v5 image with crafted metadata (bsc#1171217).

CVE-2020-12654: Fixed an issue in he wifi driver which could have allowed a remote AP to trigger a heap-based buffer overflow (bsc#1171202).

CVE-2020-12653: Fixed an issue in the wifi driver which could have allowed local users to gain privileges or cause a denial of service (bsc#1171195).

CVE-2020-12652: Fixed an issue which could have allowed local users to hold an incorrect lock during the ioctl operation and trigger a race condition (bsc#1171218).

CVE-2020-12464: Fixed a use-after-free due to a transfer without a reference (bsc#1170901).

CVE-2020-12114: Fixed a pivot_root race condition which could have allowed local users to cause a denial of service (panic) by corrupting a mountpoint reference counter (bsc#1171098).

CVE-2020-10757: Fixed an issue where remaping hugepage DAX to anon mmap could have caused user PTE access (bsc#1172317).

CVE-2020-10751: Fixed an improper implementation in SELinux LSM hook where it was assumed that an skb would only contain a single netlink message (bsc#1171189).

CVE-2020-10732: Fixed kernel data leak in userspace coredumps due to uninitialized data (bsc#1171220).

CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).

CVE-2020-10711: Fixed a NULL pointer dereference in SELinux subsystem which could have allowed a remote network user to crash the kernel resulting in a denial of service (bsc#1171191).

CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).

CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bsc#1170345).

CVE-2019-20812: Fixed an issue in prb_calc_retire_blk_tmo() which could have resulted in a denial of service (bsc#1172453).

CVE-2019-20806: Fixed a NULL pointer dereference which may had lead to denial of service (bsc#1172199).

CVE-2019-19462: Fixed an issue which could have allowed local user to cause denial of service (bsc#1158265).

CVE-2018-1000199: Fixed a potential local code execution via ptrace (bsc#1089895)

The update package also includes non-security fixes. See advisory for details.

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:1578 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: Integer overflow in Intel(R) Graphics Drivers (CVE-2020-12362)

    * kernel: memory leak in sof_set_get_large_ctrl_data() function in sound/soc/sof/ipc.c (CVE-2019-18811)

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

    * kernel: use-after-free bug caused by a malicious USB device in the drivers/usb/misc/iowarrior.c driver     (CVE-2019-19528)

    * kernel: possible out of bounds write in kbd_keycode of keyboard.c (CVE-2020-0431)

    * kernel: DoS by corrupting mountpoint reference counter (CVE-2020-12114)

    * kernel: use-after-free in usb_sg_cancel function in drivers/usb/core/message.c (CVE-2020-12464)

    * kernel: buffer uses out of index in ext3/4 filesystem (CVE-2020-14314)

    * kernel: Use After Free vulnerability in cgroup BPF component (CVE-2020-14356)

    * kernel: NULL pointer dereference in serial8250_isa_init_ports function in     drivers/tty/serial/8250/8250_core.c (CVE-2020-15437)

    * kernel: umask not applied on filesystem without ACL support (CVE-2020-24394)

    * kernel: TOCTOU mismatch in the NFS client code (CVE-2020-25212)

    * kernel: incomplete permission checking for access to rbd devices (CVE-2020-25284)

    * kernel: race condition between hugetlb sysctl handlers in mm/hugetlb.c (CVE-2020-25285)

    * kernel: improper input validation in ppp_cp_parse_cr function leads to memory corruption and read     overflow (CVE-2020-25643)

    * kernel: perf_event_parse_addr_filter memory (CVE-2020-25704)

    * kernel: use-after-free in kernel midi subsystem (CVE-2020-27786)

    * kernel: child process is able to access parent mm through hfi dev file handle (CVE-2020-27835)

    * kernel: slab-out-of-bounds read in fbcon (CVE-2020-28974)

    * kernel: fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent (CVE-2020-35508)

    * kernel: fuse: fuse_do_getattr() calls make_bad_inode() in inappropriate situations (CVE-2020-36322)

    * kernel: use after free in tun_get_user of tun.c could lead to local escalation of privilege     (CVE-2021-0342)

    * kernel: NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs in     drivers/media/usb/gspca/ov519.c (CVE-2020-11608)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-1578 advisory.

    - drm/i915/guc: Update to use firmware v49.0.1 (Dave Airlie) [1935281] {CVE-2020-12362}
    - scsi: iscsi: Verify lengths on passthrough PDUs (Chris Leech) [1930833] {CVE-2021-27365}
    - scsi: iscsi: Ensure sysfs attributes are limited to PAGE_SIZE (Chris Leech) [1930856] {CVE-2021-27363}
    - scsi: iscsi: Restrict sessions and handles to admin capabilities (Chris Leech) [1930809]     {CVE-2021-27364}
    - vt: Disable KD_FONT_OP_COPY (Dave Airlie) [1903937] {CVE-2020-28974}
    - fix regression in 'epoll: Keep a reference on files added to the check list' (Carlos Maiolino) [1920776]     {CVE-2020-0466}
    - do_epoll_ctl(): clean the failure exits up a bit (Carlos Maiolino) [1920776] {CVE-2020-0466}
    - epoll: Keep a reference on files added to the check list (Carlos Maiolino) [1920776] {CVE-2020-0466}
    - net/vmw_vsock: fix NULL pointer dereference (Jon Maloy) [1925600] {CVE-2021-26708}
    - net/vmw_vsock: improve locking in vsock_connect_timeout() (Jon Maloy) [1925600] {CVE-2021-26708}
    - vsock: fix locking in vsock_shutdown() (Jon Maloy) [1925600] {CVE-2021-26708}
    - vsock: fix the race conditions in multi-transport support (Jon Maloy) [1925600] {CVE-2021-26708}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

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

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

  - A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to     achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending     network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug     and lack of error checking in agg_dequeue(). We recommend upgrading past commit     8fc134fee27f2263988ae38920bc03da416b03d8. (CVE-2023-4921)

  - mwifiex_cmd_802_11_ad_hoc_start in drivers/net/wireless/marvell/mwifiex/join.c in the Linux kernel through     5.10.4 might allow remote attackers to execute arbitrary code via a long SSID value, aka CID-5c455c5ab332.
    (CVE-2020-36158)

  - Integer overflow in the firmware for some Intel(R) Graphics Drivers for Windows * before version     26.20.100.7212 and before Linux kernel version 5.5 may allow a privileged user to potentially enable an     escalation of privilege via local access. (CVE-2020-12362)

  - 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 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent     Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a     network. Under the right circumstances, when another device sends fragmented frames encrypted using WEP,     CCMP, or GCMP, this can be abused to inject arbitrary network packets and/or exfiltrate user data.
    (CVE-2020-24586)

Note that Nessus has not tested for these issues 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 :

  - 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.

The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or 'CrossTalk' (bsc#1154824).

CVE-2020-13143: Fixed an out-of-bounds read in gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c (bsc#1171982).

CVE-2020-12769: Fixed an issue which could have allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one (bsc#1171983).

CVE-2020-12768: Fixed a memory leak in svm_cpu_uninit in arch/x86/kvm/svm.c (bsc#1171736).

CVE-2020-12659: Fixed an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) due to improper headroom validation (bsc#1171214).

CVE-2020-12657: An a use-after-free in block/bfq-iosched.c (bsc#1171205).

CVE-2020-12656: Fixed an improper handling of certain domain_release calls leadingch could have led to a memory leak (bsc#1171219).

CVE-2020-12655: Fixed an issue which could have allowed attackers to trigger a sync of excessive duration via an XFS v5 image with crafted metadata (bsc#1171217).

CVE-2020-12654: Fixed an issue in he wifi driver which could have allowed a remote AP to trigger a heap-based buffer overflow (bsc#1171202).

CVE-2020-12653: Fixed an issue in the wifi driver which could have allowed local users to gain privileges or cause a denial of service (bsc#1171195).

CVE-2020-12652: Fixed an issue which could have allowed local users to hold an incorrect lock during the ioctl operation and trigger a race condition (bsc#1171218).

CVE-2020-12464: Fixed a use-after-free due to a transfer without a reference (bsc#1170901).

CVE-2020-12114: Fixed a pivot_root race condition which could have allowed local users to cause a denial of service (panic) by corrupting a mountpoint reference counter (bsc#1171098).

CVE-2020-10757: Fixed an issue where remaping hugepage DAX to anon mmap could have caused user PTE access (bsc#1172317).

CVE-2020-10751: Fixed an improper implementation in SELinux LSM hook where it was assumed that an skb would only contain a single netlink message (bsc#1171189).

CVE-2020-10732: Fixed kernel data leak in userspace coredumps due to uninitialized data (bsc#1171220).

CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).

CVE-2020-10711: Fixed a NULL pointer dereference in SELinux subsystem which could have allowed a remote network user to crash the kernel resulting in a denial of service (bsc#1171191).

CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).

CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bsc#1170345).

CVE-2019-20812: Fixed an issue in prb_calc_retire_blk_tmo() which could have resulted in a denial of service (bsc#1172453).

CVE-2019-20806: Fixed a NULL pointer dereference which may had lead to denial of service (bsc#1172199).

CVE-2019-19462: Fixed an issue which could have allowed local user to cause denial of service (bsc#1158265).

CVE-2018-1000199: Fixed a potential local code execution via ptrace (bsc#1089895).

The update package also includes non-security fixes. See advisory for details.

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

The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4388-1 advisory.

    It was discovered that the F2FS file system implementation in the Linux kernel did not properly perform     bounds checking on xattrs in some situations. A local attacker could possibly use this to expose sensitive     information (kernel memory). (CVE-2020-0067)

    It was discovered that memory contents previously stored in microarchitectural special registers after     RDRAND, RDSEED, and SGX EGETKEY read operations on Intel client and Xeon E3 processors may be briefly     exposed to processes on the same or different processor cores. A local attacker could use this to expose     sensitive information. (CVE-2020-0543)

    Piotr Krysiuk discovered that race conditions existed in the file system implementation in the Linux     kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-12114)

    It was discovered that the USB susbsystem's scatter-gather implementation in the Linux kernel did not     properly take data references in some situations, leading to a use-after-free. A physically proximate     attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
    (CVE-2020-12464)

    Bui Quang Minh discovered that the XDP socket implementation in the Linux kernel did not properly validate     meta-data passed from user space, leading to an out-of-bounds write vulnerability. A local attacker with     the CAP_NET_ADMIN capability could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2020-12659)

    Xiumei Mu discovered that the IPSec implementation in the Linux kernel did not properly encrypt IPv6     traffic in some situations. An attacker could use this to expose sensitive information. (CVE-2020-1749)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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

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 SUSE Linux Enterprise 15 kernel was updated receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or 'CrossTalk' (bsc#1154824).

CVE-2020-9383: Fixed an out-of-bounds read due to improper error condition check of FDC index (bsc#1165111).

CVE-2020-8992: Fixed an issue which could have allowed attackers to cause a soft lockup via a crafted journal size (bsc#1164069).

CVE-2020-8834: Fixed a stack corruption which could have lead to kernel panic (bsc#1168276).

CVE-2020-8649: Fixed a use-after-free in the vgacon_invert_region function in drivers/video/console/vgacon.c (bsc#1162931).

CVE-2020-8648: Fixed a use-after-free in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bsc#1162928).

CVE-2020-8647: Fixed a use-after-free in the vc_do_resize function in drivers/tty/vt/vt.c (bsc#1162929).

CVE-2020-8428: Fixed a use-after-free which could have allowed local users to cause a denial of service (bsc#1162109).

CVE-2020-7053: Fixed a use-after-free in the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c (bsc#1160966).

CVE-2020-2732: Fixed an issue affecting Intel CPUs where an L2 guest may trick the L0 hypervisor into accessing sensitive L1 resources (bsc#1163971).

CVE-2020-13143: Fixed an out-of-bounds read in gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c (bsc#1171982).

CVE-2020-12769: Fixed an issue which could have allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one (bsc#1171983).

CVE-2020-12657: An a use-after-free in block/bfq-iosched.c (bsc#1171205).

CVE-2020-12656: Fixed an improper handling of certain domain_release calls leadingch could have led to a memory leak (bsc#1171219).

CVE-2020-12655: Fixed an issue which could have allowed attackers to trigger a sync of excessive duration via an XFS v5 image with crafted metadata (bsc#1171217).

CVE-2020-12654: Fixed an issue in he wifi driver which could have allowed a remote AP to trigger a heap-based buffer overflow (bsc#1171202).

CVE-2020-12653: Fixed an issue in the wifi driver which could have allowed local users to gain privileges or cause a denial of service (bsc#1171195).

CVE-2020-12652: Fixed an issue which could have allowed local users to hold an incorrect lock during the ioctl operation and trigger a race condition (bsc#1171218).

CVE-2020-12464: Fixed a use-after-free due to a transfer without a reference (bsc#1170901).

CVE-2020-12114: Fixed a pivot_root race condition which could have allowed local users to cause a denial of service (panic) by corrupting a mountpoint reference counter (bsc#1171098).

CVE-2020-11669: Fixed an issue where arch/powerpc/kernel/idle_book3s.S did not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR (bnc#1169390).

CVE-2020-11609: Fixed a NULL pointer dereference due to improper handling of descriptors (bsc#1168854).

CVE-2020-11608: Fixed a NULL pointer dereferences via a crafted USB (bsc#1168829).

CVE-2020-11494: Fixed an issue which could have allowed attackers to read uninitialized can_frame data (bsc#1168424).

CVE-2020-10942: Fixed a kernel stack corruption via crafted system calls (bsc#1167629).

CVE-2020-10757: Fixed an issue where remaping hugepage DAX to anon mmap could have caused user PTE access (bsc#1172317).

CVE-2020-10751: Fixed an improper implementation in SELinux LSM hook where it was assumed that an skb would only contain a single netlink message (bsc#1171189).

CVE-2020-10732: Fixed kernel data leak in userspace coredumps due to uninitialized data (bsc#1171220).

CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).

CVE-2020-10711: Fixed a NULL pointer dereference in SELinux subsystem which could have allowed a remote network user to crash the kernel resulting in a denial of service (bsc#1171191).

CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).

CVE-2019-9458: Fixed a use after free due to a race condition which could have led to privilege escalation of privilege (bsc#1168295).

CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bsc#1170345).

CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bsc#1120386).

CVE-2019-20812: Fixed an issue in prb_calc_retire_blk_tmo() which could have resulted in a denial of service (bsc#1172453).

CVE-2019-20810: Fixed a memory leak in due to not calling of snd_card_free (bsc#1172458).

CVE-2019-20096: Fixed a memory leak in __feat_register_sp() in net/dccp/feat.c, which could have caused denial of service (bsc#1159908).

CVE-2019-20095: Fixed an improper error-handling cases that did not free allocated hostcmd memory which was causing memory leak (bsc#1159909).

CVE-2019-20054: Fixed a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c, related to put_links (bsc#1159910).

CVE-2019-19966: Fixed a use-after-free in cpia2_exit() which could have caused denial of service (bsc#1159841).

CVE-2019-19965: Fixed a NULL pointer dereference, due to mishandling of port disconnection during discovery (bsc#1159911).

CVE-2019-19770: Fixed a use-after-free in the debugfs_remove function (bsc#1159198).

CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bsc#1159285).

CVE-2019-19462: Fixed an issue which could have allowed local user to cause denial of service (bsc#1158265).

CVE-2019-19447: Fixed a user after free via a crafted ext4 filesystem image (bsc#1158819).

CVE-2019-19319: Fixed a user after free when a large old_size value is used in a memset call (bsc#1158021).

CVE-2019-19318: Fixed a use after free via a crafted btrfs image (bsc#1158026).

CVE-2019-19054: Fixed a memory leak in the cx23888_ir_probe() which could have allowed attackers to cause a denial of service (bsc#1161518).

CVE-2019-19045: Fixed a memory leak in which could have allowed attackers to cause a denial of service (bsc#1161522).

CVE-2019-19036: Fixed a NULL pointer dereference in btrfs_root_node (bsc#1157692).

CVE-2019-16994: Fixed a memory leak which might have caused denial of service (bsc#1161523).

CVE-2019-14897: Fixed a stack overflow in Marvell Wifi Driver (bsc#1157155).

CVE-2019-14896: Fixed a heap overflow in Marvell Wifi Driver (bsc#1157157).

CVE-2019-14615: Fixed an improper control flow in certain data structures which could have led to information disclosure (bsc#1160195).

CVE-2018-1000199: Fixed a potential local code execution via ptrace (bsc#1089895).

The update package also includes non-security fixes. See advisory for details.

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

ID	Name	Product	Family	Published	Updated	Severity
137297	Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4387-1)	Nessus	Ubuntu Local Security Checks	6/10/2020	8/29/2024	medium
137299	Ubuntu 20.04 LTS : Linux kernel vulnerabilities (USN-4389-1)	Nessus	Ubuntu Local Security Checks	6/10/2020	8/27/2024	medium
137301	Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4391-1)	Nessus	Ubuntu Local Security Checks	6/10/2020	8/27/2024	high
137613	SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:1599-1)	Nessus	SuSE Local Security Checks	6/18/2020	3/6/2024	high
149670	RHEL 8 : kernel (RHSA-2021:1578)	Nessus	Red Hat Local Security Checks	5/19/2021	3/6/2025	high
149914	Oracle Linux 8 : kernel (ELSA-2021-1578)	Nessus	Oracle Linux Local Security Checks	5/26/2021	2/9/2026	high
206835	NewStart CGSL MAIN 6.02 : kernel Multiple Vulnerabilities (NS-SA-2024-0056)	Nessus	NewStart CGSL Local Security Checks	9/10/2024	9/24/2025	high
137024	EulerOS 2.0 SP5 : kernel (EulerOS-SA-2020-1606)	Nessus	Huawei Local Security Checks	6/2/2020	3/8/2024	high
137615	SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1602-1)	Nessus	SuSE Local Security Checks	6/18/2020	3/6/2024	high
137298	Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4388-1)	Nessus	Ubuntu Local Security Checks	6/10/2020	8/29/2024	high
137283	Debian DLA-2241-2 : linux security update	Nessus	Debian Local Security Checks	6/10/2020	3/7/2024	high
138272	SUSE SLES15 Security Update : kernel (SUSE-SU-2020:1663-1)	Nessus	SuSE Local Security Checks	7/9/2020	3/1/2024	critical

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