The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4225-2 advisory.

    USN-4225-1 fixed vulnerabilities in the Linux kernel for Ubuntu 19.10. This update provides the     corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 19.10 for Ubuntu 18.04     LTS.

    It was discovered that a heap-based buffer overflow existed in the Marvell WiFi-Ex Driver for the Linux     kernel. A physically proximate attacker could use this to cause a denial of service (system crash) or     possibly execute arbitrary code. (CVE-2019-14895, CVE-2019-14901)

    It was discovered that a heap-based buffer overflow existed in the Marvell Libertas WLAN Driver for the     Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash)     or possibly execute arbitrary code. (CVE-2019-14896, CVE-2019-14897)

    It was discovered that the Fujitsu ES network device driver for the Linux kernel did not properly check     for errors in some situations, leading to a NULL pointer dereference. A local attacker could use this to     cause a denial of service. (CVE-2019-16231)

    Anthony Steinhauser discovered that the Linux kernel did not properly perform Spectre_RSB mitigations to     all processors for PowerPC architecture systems in some situations. A local attacker could use this to     expose sensitive information. (CVE-2019-18660)

    It was discovered that the Mellanox Technologies Innova driver in the Linux kernel did not properly     deallocate memory in certain failure conditions. A local attacker could use this to cause a denial of     service (kernel memory exhaustion). (CVE-2019-19045)

    It was discovered that the Intel WiMAX 2400 driver in the Linux kernel did not properly deallocate memory     in certain situations. A local attacker could use this to cause a denial of service (kernel memory     exhaustion). (CVE-2019-19051)

    It was discovered that Geschwister Schneider USB CAN interface driver in the Linux kernel did not properly     deallocate memory in certain failure conditions. A physically proximate attacker could use this to cause a     denial of service (kernel memory exhaustion). (CVE-2019-19052)

    It was discovered that the netlink-based 802.11 configuration interface in the Linux kernel did not     deallocate memory in certain error conditions. A local attacker could possibly use this to cause a denial     of service (kernel memory exhaustion). (CVE-2019-19055)

    It was discovered that the event tracing subsystem of the Linux kernel did not properly deallocate memory     in certain error conditions. A local attacker could use this to cause a denial of service (kernel memory     exhaustion). (CVE-2019-19072)

    It was discovered that the driver for memoryless force-feedback input devices in the Linux kernel     contained a use-after-free vulnerability. A physically proximate attacker could possibly use this to cause     a denial of service (system crash) or execute arbitrary code. (CVE-2019-19524)

    It was discovered that the Microchip CAN BUS Analyzer driver in the Linux kernel contained a use-after-     free vulnerability on device disconnect. A physically proximate attacker could use this to cause a denial     of service (system crash) or possibly execute arbitrary code. (CVE-2019-19529)

    It was discovered that the PEAK-System Technik USB driver in the Linux kernel did not properly sanitize     memory before sending it to the device. A physically proximate attacker could use this to expose sensitive     information (kernel memory). (CVE-2019-19534)

    It was discovered that the DesignWare USB3 controller driver in the Linux kernel did not properly     deallocate memory in some error conditions. A local attacker could possibly use this to cause a denial of     service (memory exhaustion). (CVE-2019-18813)

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 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.

The remote SUSE Linux SLES11 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2020:14354-1 advisory.

  - ** DISPUTED ** An issue was discovered in the MPT3COMMAND case in _ctl_ioctl_main in     drivers/scsi/mpt3sas/mpt3sas_ctl.c in the Linux kernel through 5.1.5. It allows local users to cause a     denial of service or possibly have unspecified other impact by changing the value of ioc_number between     two kernel reads of that value, aka a double fetch vulnerability. NOTE: a third party reports that this     is unexploitable because the doubly fetched value is not used. (CVE-2019-12456)

  - 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)

  - 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)

  - An issue was discovered in the Linux kernel before 5.2.3. There is a use-after-free caused by a malicious     USB device in the drivers/media/usb/dvb-usb/dvb-usb-init.c driver. (CVE-2019-15213)

  - An issue was discovered in the Linux kernel before 5.0.1. There is a memory leak in     register_queue_kobjects() in net/core/net-sysfs.c, which will cause denial of service. (CVE-2019-15916)

  - The Linux kernel before 5.4.1 on powerpc allows Information Exposure because the Spectre-RSB mitigation is     not in place for all applicable CPUs, aka CID-39e72bf96f58. This is related to     arch/powerpc/kernel/entry_64.S and arch/powerpc/kernel/security.c. (CVE-2019-18660)

  - 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)

  - A memory leak in the bfad_im_get_stats() function in drivers/scsi/bfa/bfad_attr.c in the Linux kernel     through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering     bfa_port_get_stats() failures, aka CID-0e62395da2bd. (CVE-2019-19066)

  - Memory leaks in drivers/net/wireless/ath/ath9k/htc_hst.c in the Linux kernel through 5.3.11 allow     attackers to cause a denial of service (memory consumption) by triggering wait_for_completion_timeout()     failures. This affects the htc_config_pipe_credits() function, the htc_setup_complete() function, and the     htc_connect_service() function, aka CID-853acf7caf10. (CVE-2019-19073)

  - A memory leak in the ath9k_wmi_cmd() function in drivers/net/wireless/ath/ath9k/wmi.c in the Linux kernel     through 5.3.11 allows attackers to cause a denial of service (memory consumption), aka CID-728c1e2a05e4.
    (CVE-2019-19074)

  - 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)

  - In the Linux kernel before 5.3.7, there is a use-after-free bug that can be caused by a malicious USB     device in the drivers/usb/misc/adutux.c driver, aka CID-44efc269db79. (CVE-2019-19523)

  - 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 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)

  - 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/usb/class/cdc-acm.c driver, aka CID-c52873e5a1ef. (CVE-2019-19530)

  - In the Linux kernel before 5.2.9, there is a use-after-free bug that can be caused by a malicious USB     device in the drivers/usb/misc/yurex.c driver, aka CID-fc05481b2fca. (CVE-2019-19531)

  - 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 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 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 through 5.4.6, there is a NULL pointer dereference in     drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related     to a PHY down race condition, aka CID-f70267f379b5. (CVE-2019-19965)

  - In the Linux kernel before 5.1.6, there is a use-after-free in cpia2_exit() in     drivers/media/usb/cpia2/cpia2_v4l.c that will cause denial of service, aka CID-dea37a972655.
    (CVE-2019-19966)

  - 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)

  - 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 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)

  - 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)

  - An issue was discovered in the Linux kernel 3.16 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)

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

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

CVE-2018-13093, CVE-2018-13094

Wen Xu from SSLab at Gatech reported several NULL pointer dereference flaws that may be triggered when mounting and operating a crafted XFS volume. An attacker able to mount arbitrary XFS volumes could use this to cause a denial of service (crash).

CVE-2018-20976

It was discovered that the XFS file-system implementation did not correctly handle some mount failure conditions, which could lead to a use-after-free. The security impact of this is unclear.

CVE-2018-21008

It was discovered that the rsi wifi driver did not correctly handle some failure conditions, which could lead to a use-after- free. The security impact of this is unclear.

CVE-2019-0136

It was discovered that the wifi soft-MAC implementation (mac80211) did not properly authenticate Tunneled Direct Link Setup (TDLS) messages.
A nearby attacker could use this for denial of service (loss of wifi connectivity).

CVE-2019-2215

The syzkaller tool discovered a use-after-free vulnerability in the Android binder driver. A local user on a system with this driver enabled could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation. However, this driver is not enabled on Debian packaged kernels.

CVE-2019-10220

Various developers and researchers found that if a crafted file- system or malicious file server presented a directory with filenames including a '/' character, this could confuse and possibly defeat security checks in applications that read the directory.

The kernel will now return an error when reading such a directory, rather than passing the invalid filenames on to user-space.

CVE-2019-14615

It was discovered that Intel 9th and 10th generation GPUs did not clear user-visible state during a context switch, which resulted in information leaks between GPU tasks. This has been mitigated in the i915 driver.

The affected chips (gen9 and gen10) are listed at <https://en.wikipedia.org/wiki/List_of_Intel_graphics_proces sing_units#Gen9>.

CVE-2019-14814, CVE-2019-14815, CVE-2019-14816

Multiple bugs were discovered in the mwifiex wifi driver, which could lead to heap buffer overflows. A local user permitted to configure a device handled by this driver could probably use this for privilege escalation.

CVE-2019-14895, CVE-2019-14901

ADLab of Venustech discovered potential heap buffer overflows in the mwifiex wifi driver. On systems using this driver, a malicious Wireless Access Point or adhoc/P2P peer could use these to cause a denial of service (memory corruption or crash) or possibly for remote code execution.

CVE-2019-14896, CVE-2019-14897

ADLab of Venustech discovered potential heap and stack buffer overflows in the libertas wifi driver. On systems using this driver, a malicious Wireless Access Point or adhoc/P2P peer could use these to cause a denial of service (memory corruption or crash) or possibly for remote code execution.

CVE-2019-15098

Hui Peng and Mathias Payer reported that the ath6kl wifi driver did not properly validate USB descriptors, which could lead to a NULL pointer derefernce. An attacker able to add USB devices could use this to cause a denial of service (BUG/oops).

CVE-2019-15217

The syzkaller tool discovered that the zr364xx mdia driver did not correctly handle devices without a product name string, which could lead to a NULL pointer dereference. An attacker able to add USB devices could use this to cause a denial of service (BUG/oops).

CVE-2019-15291

The syzkaller tool discovered that the b2c2-flexcop-usb media driver did not properly validate USB descriptors, which could lead to a NULL pointer dereference. An attacker able to add USB devices could use this to cause a denial of service (BUG/oops).

CVE-2019-15505

The syzkaller tool discovered that the technisat-usb2 media driver did not properly validate incoming IR packets, which could lead to a heap buffer over-read. An attacker able to add USB devices could use this to cause a denial of service (BUG/oops) or to read sensitive information from kernel memory.

CVE-2019-15917

The syzkaller tool found a race condition in code supporting UART-attached Bluetooth adapters, which could lead to a use- after-free. A local user with access to a pty device or other suitable tty device could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation.

CVE-2019-16746

It was discovered that the wifi stack did not validate the content of beacon heads provided by user-space for use on a wifi interface in Access Point mode, which could lead to a heap buffer overflow. A local user permitted to configure a wifi interface could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation.

CVE-2019-17052, CVE-2019-17053, CVE-2019-17054, CVE-2019-17055, CVE-2019-17056

Ori Nimron reported that various network protocol implementations

  - AX.25, IEEE 802.15.4, Appletalk, ISDN, and NFC - allowed     all users to create raw sockets. A local user could use     this to send arbitrary packets on networks using those     protocols.

CVE-2019-17075

It was found that the cxgb4 Infiniband driver requested DMA (Direct Memory Access) to a stack-allocated buffer, which is not supported and on some systems can result in memory corruption of the stack. A local user might be able to use this for denial of service (memory corruption or crash) or possibly for privilege escalation.

CVE-2019-17133

Nicholas Waisman reported that the wifi stack did not valdiate received SSID information before copying it, which could lead to a buffer overflow if it is not validated by the driver or firmware. A malicious Wireless Access Point might be able to use this to cause a denial of service (memory corruption or crash) or for remote code execution.

CVE-2019-17666

Nicholas Waisman reported that the rtlwifi wifi drivers did not properly validate received P2P information, leading to a buffer overflow. A malicious P2P peer could use this to cause a denial of service (memory corruption or crash) or for remote code execution.

CVE-2019-18282

Jonathan Berger, Amit Klein, and Benny Pinkas discovered that the generation of UDP/IPv6 flow labels used a weak hash function, 'jhash'.
This could enable tracking individual computers as they communicate with different remote servers and from different networks. The 'siphash' function is now used instead.

CVE-2019-18683

Multiple race conditions were discovered in the vivid media driver, used for testing Video4Linux2 (V4L2) applications, These race conditions could result in a use-after-free. On a system where this driver is loaded, a user with permission to access media devices could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation.

CVE-2019-18809

Navid Emamdoost discovered a potential memory leak in the af9005 media driver if the device fails to respond to a command. The security impact of this is unclear.

CVE-2019-19037

It was discovered that the ext4 filesystem driver did not correctly handle directories with holes (unallocated regions) in them. An attacker able to mount arbitrary ext4 volumes could use this to cause a denial of service (crash).

CVE-2019-19051

Navid Emamdoost discovered a potential memory leak in the i2400m wimax driver if the software rfkill operation fails. The security impact of this is unclear.

CVE-2019-19052

Navid Emamdoost discovered a potential memory leak in the gs_usb CAN driver if the open (interface-up) operation fails. The security impact of this is unclear.

CVE-2019-19056, CVE-2019-19057

Navid Emamdoost discovered potential memory leaks in the mwifiex wifi driver if the probe operation fails. The security impact of this is unclear.

CVE-2019-19062

Navid Emamdoost discovered a potential memory leak in the AF_ALG subsystem if the CRYPTO_MSG_GETALG operation fails. A local user could possibly use this to cause a denial of service (memory exhaustion).

CVE-2019-19066

Navid Emamdoost discovered a potential memory leak in the bfa SCSI driver if the get_fc_host_stats operation fails. The security impact of this is unclear.

CVE-2019-19068

Navid Emamdoost discovered a potential memory leak in the rtl8xxxu wifi driver, in case it fails to submit an interrupt buffer to the device. The security impact of this is unclear.

CVE-2019-19227

Dan Carpenter reported missing error checks in the Appletalk protocol implementation that could lead to a NULL pointer dereference. The security impact of this is unclear.

CVE-2019-19332

The syzkaller tool discovered a missing bounds check in the KVM implementation for x86, which could lead to a heap buffer overflow. A local user permitted to use KVM could use this to cause a denial of service (memory corruption or 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-2019-19523

The syzkaller tool discovered a use-after-free bug in the adutux USB driver. An attacker able to add and remove USB devices could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation.

CVE-2019-19524

The syzkaller tool discovered a race condition in the ff-memless library used by input drivers. An attacker able to add and remove USB devices could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation.

CVE-2019-19525

The syzkaller tool discovered a use-after-free bug in the atusb driver for IEEE 802.15.4 networking. An attacker able to add and remove USB devices could possibly use this to cause a denial of service (memory corruption or crash) or for privilege escalation.

CVE-2019-19527

The syzkaller tool discovered that the hiddev driver did not correctly handle races between a task opening the device and disconnection of the underlying hardware. A local user permitted to access hiddev devices, and able to add and remove USB devices, could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation.

CVE-2019-19530

The syzkaller tool discovered a potential use-after-free in the cdc-acm network driver. An attacker able to add USB devices could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation.

CVE-2019-19531

The syzkaller tool discovered a use-after-free bug in the yurex USB driver. An attacker able to add and remove USB devices could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation.

CVE-2019-19532

The syzkaller tool discovered a potential heap buffer overflow in the hid-gaff input driver, which was also found to exist in many other input drivers. An attacker able to add USB devices could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation.

CVE-2019-19533

The syzkaller tool discovered that the ttusb-dec media driver was missing initialisation of a structure, which could leak sensitive information from kernel memory.

CVE-2019-19534, CVE-2019-19535, CVE-2019-19536

The syzkaller tool discovered that the peak_usb CAN driver was missing initialisation of some structures, which could leak sensitive information from kernel memory.

CVE-2019-19537

The syzkaller tool discovered race conditions in the USB stack, involving character device registration. An attacker able to add USB devices could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation.

CVE-2019-19767

The syzkaller tool discovered that crafted ext4 volumes could trigger a buffer overflow in the ext4 filesystem driver. An attacker able to mount such a volume could use this to cause a denial of service (memory corruption or crash) or possibly for privilege escalation.

CVE-2019-19947

It was discovered that the kvaser_usb CAN driver was missing initialisation of some structures, which could leak sensitive information from kernel memory.

CVE-2019-19965

Gao Chuan reported a race condition in the libsas library used by SCSI host drivers, which could lead to a NULL pointer dereference. An attacker able to add and remove SCSI devices could use this to cause a denial of service (BUG/oops).

CVE-2019-20096

The Hulk Robot tool discovered a potential memory leak in the DCCP protocol implementation. This may be exploitable by local users, or by remote attackers if the system uses DCCP, to cause a denial of service (out of memory).

For Debian 8 'Jessie', these problems have been fixed in version 4.9.210-1~deb8u1. This update additionally fixes Debian bugs #869511 and 945023; and includes many more bug fixes from stable updates 4.9.190-4.9.210 inclusive.

We recommend that you upgrade your linux-4.9 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.

ID	Name	Product	Family	Published	Updated	Severity
133142	Ubuntu 18.04 LTS : Linux kernel (HWE) vulnerabilities (USN-4225-2)	Nessus	Ubuntu Local Security Checks	1/21/2020	8/27/2024	critical
138272	SUSE SLES15 Security Update : kernel (SUSE-SU-2020:1663-1)	Nessus	SuSE Local Security Checks	7/9/2020	3/1/2024	critical
150557	SUSE SLES11 Security Update : kernel (SUSE-SU-2020:14354-1)	Nessus	SuSE Local Security Checks	6/10/2021	12/26/2023	critical
134240	Debian DLA-2114-1 : linux-4.9 security update	Nessus	Debian Local Security Checks	3/6/2020	3/25/2024	critical

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