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USN-4227-1: Linux kernel vulnerabilities

7 January 2020

Several security issues were fixed in the Linux kernel.

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Releases

Packages

  • linux - Linux kernel
  • linux-aws - Linux kernel for Amazon Web Services (AWS) systems
  • linux-aws-hwe - Linux kernel for Amazon Web Services (AWS-HWE) systems
  • linux-azure - Linux kernel for Microsoft Azure Cloud systems
  • linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
  • linux-gke-4.15 - Linux kernel for Google Container Engine (GKE) systems
  • linux-hwe - Linux hardware enablement (HWE) kernel
  • linux-kvm - Linux kernel for cloud environments
  • linux-oem - Linux kernel for OEM processors
  • linux-oracle - Linux kernel for Oracle Cloud systems
  • linux-raspi2 - Linux kernel for Raspberry Pi 2
  • linux-snapdragon - Linux kernel for Snapdragon processors

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)

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)

It was discovered that the QLogic Fibre Channel driver in the Linux kernel
did not properly check for error, leading to a NULL pointer dereference. A
local attacker could possibly use this to cause a denial of service (system
crash). (CVE-2019-16233)

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 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 AMD Display Engine Driver in the Linux kernel
did not properly deallocate memory in certain error conditions. A local
attack could use this to cause a denial of service (memory exhaustion).
(CVE-2019-19083)

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)

Tristan Madani discovered that the ALSA timer implementation in the Linux
kernel contained a use-after-free vulnerability. A local attacker could use
this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2019-19807)

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 18.04
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-aws-5.0, linux-image-5.0.0-38-generic-lpae, linux-oracle, linux-raspi2, linux-gke-5.0, linux-azure, linux-image-gke-5.0, linux-image-lowlatency, linux-image-5.0.0-1024-kvm, linux-image-generic-lpae, linux-oem-osp1, linux-oracle-5.0, linux-image-aws-edge, linux-kvm, linux-image-5.0.0-1009-oracle, linux-image-5.0.0-38-lowlatency, linux-image-azure, linux-aws, linux-image-5.0.0-1033-oem-osp1, linux-image-5.0.0-1027-gke, linux-image-5.0.0-1028-gcp, linux-image-5.0.0-38-generic, linux-image-generic, linux-image-oracle, linux-image-oracle-edge, linux-image-gcp, linux-image-oem-osp1, linux-image-5.0.0-1028-azure, linux-image-aws, linux-image-virtual, linux-image-kvm, linux-image-raspi2, linux-gcp, linux-image-5.0.0-1024-raspi2, linux, linux-image-5.0.0-1023-aws, linux-image-gke
  • USN-4227-2: linux-azure, linux-image-4.15.0-1066-azure, linux-image-azure
  • USN-4225-1: linux-oracle, linux-raspi2, linux-image-5.3.0-1009-kvm, linux-azure, linux-image-5.3.0-1008-oracle, linux-image-lowlatency, linux-image-gcp-edge, linux-image-generic-lpae, linux-image-5.3.0-1010-gcp, linux-image-5.3.0-1015-raspi2, linux-image-azure-edge, linux-kvm, linux-image-5.3.0-26-snapdragon, linux-image-azure, linux-aws, linux-image-5.3.0-26-generic-lpae, linux-gcp-5.3, linux-azure-5.3, linux-image-generic, linux-image-oracle, linux-image-5.3.0-26-lowlatency, linux-image-gcp, linux-image-snapdragon, linux-image-5.3.0-1009-azure, linux-image-aws, linux-image-5.3.0-1011-gcp, linux-image-virtual, linux-image-kvm, linux-image-raspi2, linux-gcp, linux, linux-image-5.3.0-26-generic, linux-image-gke, linux-image-5.3.0-1009-aws
  • USN-4225-2: linux-image-generic-lpae-hwe-18.04, linux-image-snapdragon-hwe-18.04, linux-image-virtual-hwe-18.04-edge, linux-image-5.3.0-26-lowlatency, linux-image-snapdragon-hwe-18.04-edge, linux-image-5.3.0-26-generic-lpae, linux-image-generic-hwe-18.04-edge, linux-hwe, linux-image-5.3.0-26-generic, linux-image-lowlatency-hwe-18.04, linux-image-virtual-hwe-18.04, linux-image-generic-lpae-hwe-18.04-edge, linux-image-generic-hwe-18.04, linux-image-lowlatency-hwe-18.04-edge
  • USN-4228-1: linux-image-lowlatency-lts-wily, linux-image-virtual-lts-utopic, linux-raspi2, linux-image-lowlatency-lts-xenial, linux-image-lowlatency, linux-image-powerpc-e500mc-lts-utopic, linux-image-powerpc-e500mc-lts-wily, linux-image-powerpc-smp, linux-image-generic-lpae, linux-image-generic-lpae-lts-utopic, linux-image-4.4.0-171-generic, linux-image-generic-lpae-lts-xenial, linux-image-4.4.0-171-powerpc-e500mc, linux-image-powerpc-smp-lts-utopic, linux-image-virtual-lts-xenial, linux-kvm, linux-image-4.4.0-171-powerpc64-smp, linux-aws, linux-image-powerpc64-smp-lts-vivid, linux-image-virtual-lts-vivid, linux-image-generic-lts-xenial, linux-image-powerpc64-smp, linux-image-generic-lpae-lts-wily, linux-image-powerpc64-emb-lts-vivid, linux-image-generic, linux-image-generic-lts-vivid, linux-image-4.4.0-171-generic-lpae, linux-image-powerpc-e500mc-lts-vivid, linux-image-powerpc64-emb-lts-utopic, linux-image-virtual-lts-wily, linux-image-4.4.0-1127-raspi2, linux-image-4.4.0-171-lowlatency, linux-image-snapdragon, linux-image-powerpc64-emb-lts-xenial, linux-image-generic-lts-wily, linux-image-aws, linux-image-lowlatency-lts-vivid, linux-image-4.4.0-1100-aws, linux-image-powerpc-e500mc, linux-image-powerpc64-smp-lts-wily, linux-image-powerpc64-smp-lts-xenial, linux-image-virtual, linux-image-kvm, linux-image-powerpc64-emb, linux-image-powerpc64-emb-lts-wily, linux-image-powerpc-e500mc-lts-xenial, linux-image-generic-lpae-lts-vivid, linux-image-4.4.0-1064-kvm, linux-image-lowlatency-lts-utopic, linux-image-raspi2, linux-image-powerpc64-smp-lts-utopic, linux-image-generic-lts-utopic, linux-image-powerpc-smp-lts-vivid, linux, linux-image-powerpc-smp-lts-wily, linux-image-4.4.0-1131-snapdragon, linux-image-4.4.0-171-powerpc-smp, linux-image-powerpc-smp-lts-xenial, linux-snapdragon, linux-image-4.4.0-171-powerpc64-emb
  • USN-4228-2: linux-image-4.4.0-1060-aws, linux-image-lowlatency-lts-xenial, linux-image-4.4.0-171-generic, linux-image-generic-lpae-lts-xenial, linux-image-4.4.0-171-powerpc-e500mc, linux-image-virtual-lts-xenial, linux-image-4.4.0-171-powerpc64-smp, linux-aws, linux-image-generic-lts-xenial, linux-image-4.4.0-171-generic-lpae, linux-image-4.4.0-171-lowlatency, linux-image-powerpc64-emb-lts-xenial, linux-lts-xenial, linux-image-aws, linux-image-powerpc64-smp-lts-xenial, linux-image-powerpc-e500mc-lts-xenial, linux-image-4.4.0-171-powerpc-smp, linux-image-powerpc-smp-lts-xenial, linux-image-4.4.0-171-powerpc64-emb
  • USN-4904-1: linux-image-lowlatency-lts-wily, linux-image-virtual-lts-utopic, linux-raspi2, linux-image-4.4.0-208-powerpc64-emb, linux-image-4.4.0-208-powerpc64-smp, linux-image-lowlatency, linux-image-lowlatency-lts-xenial, linux-image-powerpc-e500mc-lts-utopic, linux-image-powerpc-e500mc-lts-wily, linux-image-powerpc-smp, linux-image-generic-lpae, linux-image-4.4.0-208-powerpc-smp, linux-image-generic-lpae-lts-utopic, linux-image-4.4.0-1090-aws, linux-image-4.4.0-1091-kvm, linux-image-generic-lpae-lts-xenial, linux-image-powerpc-smp-lts-utopic, linux-image-virtual-lts-xenial, linux-kvm, linux-aws, linux-image-powerpc64-smp-lts-vivid, linux-image-4.4.0-208-generic-lpae, linux-image-virtual-lts-vivid, linux-image-generic-lts-xenial, linux-image-powerpc64-smp, linux-image-generic-lpae-lts-wily, linux-image-powerpc64-emb-lts-vivid, linux-image-generic, linux-image-generic-lts-vivid, linux-image-powerpc-e500mc-lts-vivid, linux-image-powerpc64-emb-lts-utopic, linux-image-virtual-lts-wily, linux-image-snapdragon, linux-image-4.4.0-1126-aws, linux-image-powerpc64-emb-lts-xenial, linux-image-generic-lts-wily, linux-image-4.4.0-1154-snapdragon, linux-lts-xenial, linux-image-aws, linux-image-lowlatency-lts-vivid, linux-image-powerpc-e500mc, linux-image-powerpc64-smp-lts-wily, linux-image-powerpc64-smp-lts-xenial, linux-image-virtual, linux-image-kvm, linux-image-powerpc64-emb, linux-image-powerpc64-emb-lts-wily, linux-image-powerpc-e500mc-lts-xenial, linux-image-generic-lpae-lts-vivid, linux-image-lowlatency-lts-utopic, linux-image-raspi2, linux-image-4.4.0-208-lowlatency, linux-image-4.4.0-1150-raspi2, linux-image-generic-lts-utopic, linux-image-powerpc-smp-lts-vivid, linux, linux-image-powerpc-smp-lts-wily, linux-image-powerpc64-smp-lts-utopic, linux-snapdragon, linux-image-powerpc-smp-lts-xenial, linux-image-4.4.0-208-generic, linux-image-4.4.0-208-powerpc-e500mc
  • USN-4346-1: linux-image-lowlatency-lts-wily, linux-image-4.4.0-178-powerpc-smp, linux-image-virtual-lts-utopic, linux-raspi2, linux-image-4.4.0-1136-snapdragon, linux-image-lowlatency, linux-image-lowlatency-lts-xenial, linux-image-powerpc-e500mc-lts-utopic, linux-image-powerpc-e500mc-lts-wily, linux-image-powerpc-smp, linux-image-generic-lpae, linux-image-generic-lpae-lts-utopic, linux-image-generic-lpae-lts-xenial, linux-image-4.4.0-178-lowlatency, linux-image-4.4.0-1066-aws, linux-image-powerpc-smp-lts-utopic, linux-image-virtual-lts-xenial, linux-kvm, linux-aws, linux-image-4.4.0-1070-kvm, linux-image-powerpc64-smp-lts-vivid, linux-image-4.4.0-1132-raspi2, linux-image-virtual-lts-vivid, linux-image-generic-lts-xenial, linux-image-powerpc64-smp, linux-image-generic-lpae-lts-wily, linux-image-powerpc64-emb-lts-vivid, linux-image-generic, linux-image-generic-lts-vivid, linux-image-powerpc-e500mc-lts-vivid, linux-image-powerpc64-emb-lts-utopic, linux-image-virtual-lts-wily, linux-image-4.4.0-178-generic-lpae, linux-image-4.4.0-178-powerpc64-emb, linux-image-4.4.0-178-powerpc64-smp, linux-image-snapdragon, linux-image-powerpc64-emb-lts-xenial, linux-image-4.4.0-178-powerpc-e500mc, linux-image-generic-lts-wily, linux-lts-xenial, linux-image-aws, linux-image-lowlatency-lts-vivid, linux-image-powerpc-e500mc, linux-image-powerpc64-smp-lts-wily, linux-image-powerpc64-smp-lts-xenial, linux-image-virtual, linux-image-kvm, linux-image-powerpc64-emb, linux-image-powerpc64-emb-lts-wily, linux-image-powerpc-e500mc-lts-xenial, linux-image-generic-lpae-lts-vivid, linux-image-4.4.0-178-generic, linux-image-lowlatency-lts-utopic, linux-image-raspi2, linux-image-powerpc64-smp-lts-utopic, linux-image-generic-lts-utopic, linux-image-powerpc-smp-lts-vivid, linux, linux-image-powerpc-smp-lts-wily, linux-snapdragon, linux-image-4.4.0-1106-aws, linux-image-powerpc-smp-lts-xenial
  • USN-4208-1: linux-oracle, linux-image-5.3.0-24-generic-lpae, linux-image-lowlatency, linux-image-generic-lpae, linux-image-5.3.0-1009-gcp, linux-kvm, linux-aws, linux-image-5.3.0-1008-aws, linux-gcp-5.3, linux-image-5.3.0-24-snapdragon, linux-image-generic, linux-image-oracle, linux-image-snapdragon, linux-image-gcp, linux-image-aws, linux-image-5.3.0-24-lowlatency, linux-image-virtual, linux-image-kvm, linux-image-5.3.0-1008-kvm, linux-image-5.3.0-24-generic, linux-gcp, linux, linux-image-5.3.0-1007-oracle, linux-image-gke, linux-image-gcp-edge

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Further reading