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USN-4228-1: Linux kernel vulnerabilities

7 January 2020

Several security issues were fixed in the Linux kernel.

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Releases

Packages

Details

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)

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 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 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 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)

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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.

References

Related notices

  • USN-4226-1: linux-raspi2, linux-kvm, linux-image-5.0.0-1027-gke, linux-image-gke-5.0, linux-aws-5.0, linux-image-raspi2, linux-image-virtual, linux-azure, linux-image-5.0.0-1009-oracle, linux-image-azure, linux-image-aws, linux-image-5.0.0-38-generic, linux-image-5.0.0-38-lowlatency, linux-image-oem-osp1, linux-oem-osp1, linux-image-oracle-edge, linux-gcp, linux-image-5.0.0-1024-kvm, linux-image-lowlatency, linux-image-gke, linux-image-5.0.0-38-generic-lpae, linux-image-generic, linux-image-kvm, linux-image-generic-lpae, linux-image-5.0.0-1024-raspi2, linux-image-5.0.0-1028-azure, linux-image-5.0.0-1033-oem-osp1, linux-image-aws-edge, linux-image-5.0.0-1028-gcp, linux-image-5.0.0-1023-aws, linux-gke-5.0, linux-oracle-5.0, linux, linux-image-gcp, linux-image-oracle, linux-aws, linux-oracle
  • USN-4227-2: linux-image-azure, linux-azure, linux-image-4.15.0-1066-azure
  • USN-4227-1: linux-hwe, linux-raspi2, linux-image-generic-hwe-16.04-edge, linux-kvm, linux-image-4.15.0-1052-kvm, linux-image-aws-lts-18.04, linux-image-generic-lpae-hwe-16.04, linux-image-virtual-hwe-16.04-edge, linux-image-gke-4.15, linux-image-raspi2, linux-snapdragon, linux-image-virtual, linux-azure, linux-image-4.15.0-1050-gke, linux-image-aws-hwe, linux-image-oracle, linux-image-4.15.0-1070-snapdragon, linux-image-azure, linux-image-4.15.0-1052-gcp, linux-image-4.15.0-1066-oem, linux-image-aws, linux-image-oem, linux-image-4.15.0-74-generic-lpae, linux-image-generic-lpae-hwe-16.04-edge, linux-image-4.15.0-1053-raspi2, linux-gcp, linux-image-4.15.0-74-lowlatency, linux-image-lowlatency, linux-image-oracle-lts-18.04, linux-image-gke, linux-image-generic, linux-image-kvm, linux-image-lowlatency-hwe-16.04, linux-image-generic-lpae, linux-image-4.15.0-1066-azure, linux-image-lowlatency-hwe-16.04-edge, linux-image-generic-hwe-16.04, linux-image-snapdragon, linux-aws-hwe, linux-image-4.15.0-1031-oracle, linux-image-virtual-hwe-16.04, linux-image-4.15.0-74-generic, linux, linux-image-gcp, linux-oem, linux-gke-4.15, linux-image-4.15.0-1057-aws, linux-image-azure-edge, linux-aws, linux-oracle
  • USN-4225-1: linux-raspi2, linux-kvm, linux-gcp-5.3, linux-image-raspi2, linux-image-virtual, linux-azure, linux-image-5.3.0-26-generic-lpae, linux-image-5.3.0-1009-azure, linux-image-5.3.0-26-lowlatency, linux-image-5.3.0-26-generic, linux-azure-5.3, linux-image-azure, linux-image-aws, linux-image-5.3.0-26-snapdragon, linux-gcp, linux-image-5.3.0-1008-oracle, linux-image-lowlatency, linux-image-gke, linux-image-generic, linux-image-kvm, linux-image-generic-lpae, linux-image-5.3.0-1011-gcp, linux-image-5.3.0-1009-aws, linux-image-5.3.0-1010-gcp, linux-image-snapdragon, linux, linux-image-5.3.0-1009-kvm, linux-image-gcp, linux-image-gcp-edge, linux-image-oracle, linux-image-5.3.0-1015-raspi2, linux-image-azure-edge, linux-aws, linux-oracle
  • USN-4225-2: linux-hwe, linux-image-generic-lpae-hwe-18.04, linux-image-lowlatency-hwe-18.04, linux-image-5.3.0-26-lowlatency, linux-image-snapdragon-hwe-18.04, linux-image-virtual-hwe-18.04, linux-image-virtual-hwe-18.04-edge, linux-image-generic-hwe-18.04, linux-image-5.3.0-26-generic, linux-image-generic-lpae-hwe-18.04-edge, linux-image-5.3.0-26-generic-lpae, linux-image-lowlatency-hwe-18.04-edge, linux-image-generic-hwe-18.04-edge, linux-image-snapdragon-hwe-18.04-edge
  • USN-4228-2: linux-image-generic-lpae-lts-xenial, linux-aws, linux-image-4.4.0-171-generic-lpae, linux-image-generic-lts-xenial, linux-image-virtual-lts-xenial, linux-image-4.4.0-171-lowlatency, linux-image-aws, linux-image-4.4.0-171-powerpc64-emb, linux-image-4.4.0-171-powerpc-e500mc, linux-image-powerpc-smp-lts-xenial, linux-image-4.4.0-171-generic, linux-image-4.4.0-171-powerpc64-smp, linux-image-powerpc64-smp-lts-xenial, linux-lts-xenial, linux-image-4.4.0-1060-aws, linux-image-lowlatency-lts-xenial, linux-image-4.4.0-171-powerpc-smp, linux-image-powerpc-e500mc-lts-xenial, linux-image-powerpc64-emb-lts-xenial

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Further reading