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USN-4145-1: Linux kernel vulnerabilities

1 October 2019

Several security issues were fixed in the Linux kernel.

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Releases

Packages

Details

It was discovered that a race condition existed in the GFS2 file system in
the Linux kernel. A local attacker could possibly use this to cause a
denial of service (system crash). (CVE-2016-10905)

It was discovered that the IPv6 implementation in the Linux kernel did not
properly validate socket options in some situations. A local attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2017-18509)

It was discovered that the USB gadget Midi driver in the Linux kernel
contained a double-free vulnerability when handling certain error
conditions. A local attacker could use this to cause a denial of service
(system crash). (CVE-2018-20961)

It was discovered that the XFS file system in the Linux kernel did not
properly handle mount failures in some situations. A local attacker could
possibly use this to cause a denial of service (system crash) or execute
arbitrary code. (CVE-2018-20976)

It was discovered that the Intel Wi-Fi device driver in the Linux kernel
did not properly validate certain Tunneled Direct Link Setup (TDLS). A
physically proximate attacker could use this to cause a denial of service
(Wi-Fi disconnect). (CVE-2019-0136)

It was discovered that the Bluetooth UART implementation in the Linux
kernel did not properly check for missing tty operations. A local attacker
could use this to cause a denial of service. (CVE-2019-10207)

It was discovered that an integer overflow existed in the Linux kernel when
reference counting pages, leading to potential use-after-free issues. A
local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2019-11487)

It was discovered that the GTCO tablet input driver in the Linux kernel did
not properly bounds check the initial HID report sent by the device. A
physically proximate attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2019-13631)

It was discovered that the Raremono AM/FM/SW radio device driver in the
Linux kernel did not properly allocate memory, leading to a use-after-free.
A physically proximate attacker could use this to cause a denial of service
or possibly execute arbitrary code. (CVE-2019-15211)

It was discovered that a race condition existed in the CPiA2 video4linux
device driver for the Linux kernel, 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-2019-15215)

It was discovered that the Atheros mobile chipset driver in the Linux
kernel did not properly validate data in some situations. An attacker could
use this to cause a denial of service (system crash). (CVE-2019-15926)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 16.04

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

Related notices

  • USN-4144-1: linux-hwe, linux-image-raspi2, linux-image-generic-lpae-hwe-16.04, linux-image-4.15.0-1048-raspi2, linux, linux-image-generic-hwe-16.04-edge, linux-image-4.15.0-1026-oracle, linux-image-snapdragon, linux-oem, linux-image-4.15.0-1047-kvm, linux-image-aws-hwe, linux-image-4.15.0-65-generic, linux-kvm, linux-image-generic-hwe-16.04, linux-image-generic-lpae, linux-image-4.15.0-65-generic-lpae, linux-aws-hwe, linux-image-4.15.0-1065-snapdragon, linux-image-generic-lpae-hwe-16.04-edge, linux-image-oem, linux-image-virtual-hwe-16.04-edge, linux-oracle, linux-raspi2, linux-image-4.15.0-1057-oem, linux-image-lowlatency-hwe-16.04-edge, linux-image-4.15.0-1060-azure, linux-image-lowlatency-hwe-16.04, linux-image-virtual, linux-aws, linux-image-kvm, linux-image-4.15.0-65-lowlatency, linux-image-azure, linux-image-aws, linux-image-oracle, linux-image-virtual-hwe-16.04, linux-image-lowlatency, linux-image-generic, linux-azure, linux-image-4.15.0-1051-aws, linux-snapdragon
  • USN-4147-1: linux-hwe, linux-image-raspi2, linux-image-5.0.0-31-generic, linux-image-lowlatency-hwe-18.04, linux, linux-image-5.0.0-31-lowlatency, linux-gcp, linux-image-snapdragon, linux-image-5.0.0-1019-raspi2, linux-image-virtual-hwe-18.04, linux-gke-5.0, linux-azure, linux-kvm, linux-image-generic-lpae, linux-image-5.0.0-1020-gke, linux-image-5.0.0-1022-azure, linux-image-snapdragon-hwe-18.04, linux-image-5.0.0-1019-kvm, linux-raspi2, linux-image-5.0.0-1018-aws, linux-image-virtual, linux-aws, linux-image-kvm, linux-image-5.0.0-1023-snapdragon, linux-image-generic-lpae-hwe-18.04, linux-image-azure, linux-image-aws, linux-image-generic-hwe-18.04, linux-image-gke, linux-image-lowlatency, linux-image-5.0.0-31-generic-lpae, linux-image-generic, linux-image-5.0.0-1020-gcp, linux-image-gke-5.0, linux-snapdragon, linux-image-gcp
  • USN-4118-1: linux-image-aws-hwe, linux-aws, linux-aws-hwe, linux-image-aws, linux-image-4.15.0-1047-aws
  • USN-4115-1: linux-hwe, linux-image-raspi2, linux-image-generic-lpae-hwe-16.04, linux, linux-image-generic-hwe-16.04-edge, linux-gcp, linux-image-4.15.0-60-generic-lpae, linux-kvm, linux-image-4.15.0-60-generic, linux-image-generic-hwe-16.04, linux-image-generic-lpae, linux-image-4.15.0-1056-azure, linux-image-generic-lpae-hwe-16.04-edge, linux-image-4.15.0-1041-gke, linux-image-4.15.0-60-lowlatency, linux-image-oem, linux-image-virtual-hwe-16.04-edge, linux-image-4.15.0-1022-oracle, linux-gke-4.15, linux-image-gke-4.15, linux-oracle, linux-raspi2, linux-image-lowlatency-hwe-16.04-edge, linux-image-lowlatency-hwe-16.04, linux-image-virtual, linux-image-kvm, linux-image-4.15.0-1044-raspi2, linux-image-4.15.0-1041-gcp, linux-image-azure, linux-image-oracle, linux-image-gke, linux-image-virtual-hwe-16.04, linux-image-lowlatency, linux-image-generic, linux-azure, linux-image-4.15.0-1043-kvm, linux-image-gcp
  • USN-4069-2: linux-hwe, linux-image-snapdragon-hwe-18.04, linux-image-5.0.0-23-lowlatency, linux-image-lowlatency-hwe-18.04, linux-image-5.0.0-23-generic-lpae, linux-image-generic-lpae-hwe-18.04, linux-image-generic-hwe-18.04, linux-image-virtual-hwe-18.04, linux-image-5.0.0-23-generic
  • USN-4069-1: linux-image-raspi2, linux, linux-image-5.0.0-21-generic, linux-gcp, linux-image-snapdragon, linux-kvm, linux-image-5.0.0-1011-gcp, linux-image-generic-lpae, linux-image-5.0.0-21-generic-lpae, linux-image-5.0.0-21-lowlatency, linux-raspi2, linux-image-virtual, linux-aws, linux-image-kvm, linux-image-5.0.0-1012-azure, linux-image-azure, linux-image-aws, linux-image-5.0.0-1013-raspi2, linux-image-gke, linux-image-lowlatency, linux-image-5.0.0-1017-snapdragon, linux-image-5.0.0-1011-aws, linux-image-5.0.0-1011-kvm, linux-image-generic, linux-azure, linux-snapdragon, linux-image-gcp