Ubuntu 16.04 LTS: USN-4485-1 Critical: Kernel Security Updates

ubuntu

September 2, 2020

Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux: Linux kernel

- linux-aws: Linux kernel for Amazon Web Services (AWS) systems

- linux-azure-4.15: Linux kernel for Microsoft Azure Cloud systems

- linux-gcp-4.15: Linux kernel for Google Cloud Platform (GCP) systems

- linux-gke-4.15: Linux kernel for Google Container Engine (GKE) systems

- linux-kvm: Linux kernel for cloud environments

- linux-oem: Linux kernel for OEM systems

- linux-oracle: Linux kernel for Oracle Cloud systems

- linux-raspi2: Linux kernel for Raspberry Pi (V8) systems

- linux-snapdragon: Linux kernel for Qualcomm Snapdragon processors- 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

Details:

Timothy Michaud discovered that the i915 graphics driver in the Linux

kernel did not properly validate user memory locations for the

i915_...

Read the Full Advisory

Topics Covered

security advisory denial of service security issue kernel update ubuntu linux kernel memory exposure

Update Instructions

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

Ubuntu 18.04 LTS:
  linux-image-4.15.0-1051-oracle  4.15.0-1051.55
  linux-image-4.15.0-1067-gke     4.15.0-1067.70
  linux-image-4.15.0-1068-raspi2  4.15.0-1068.72
  linux-image-4.15.0-1072-kvm     4.15.0-1072.73
  linux-image-4.15.0-1080-aws     4.15.0-1080.84
  linux-image-4.15.0-1081-gcp     4.15.0-1081.92
  linux-image-4.15.0-1084-snapdragon  4.15.0-1084.92
  linux-image-4.15.0-1093-azure   4.15.0-1093.103
  linux-image-4.15.0-1094-oem     4.15.0-1094.104
  linux-image-4.15.0-115-generic  4.15.0-115.116
  linux-image-4.15.0-115-generic-lpae  4.15.0-115.116
  linux-image-4.15.0-115-lowlatency  4.15.0-115.116
  linux-image-aws-lts-18.04       4.15.0.1080.82
  linux-image-azure-lts-18.04     4.15.0.1093.67
  linux-image-gcp-lts-18.04       4.15.0.1081.99
  linux-image-generic             4.15.0.115.103
  linux-image-generic-lpae        4.15.0.115.103
  linux-image-gke                 4.15.0.1067.71
  linux-image-gke-4.15            4.15.0.1067.71
  linux-image-kvm                 4.15.0.1072.68
  linux-image-lowlatency          4.15.0.115.103
  linux-image-oem                 4.15.0.1094.98
  linux-image-oracle-lts-18.04    4.15.0.1051.62
  linux-image-powerpc-e500mc      4.15.0.115.103
  linux-image-powerpc-smp         4.15.0.115.103
  linux-image-powerpc64-emb       4.15.0.115.103
  linux-image-powerpc64-smp       4.15.0.115.103
  linux-image-raspi2              4.15.0.1068.66
  linux-image-snapdragon          4.15.0.1084.87
  linux-image-virtual             4.15.0.115.103

Ubuntu 16.04 LTS:
  linux-image-4.15.0-1051-oracle  4.15.0-1051.55~16.04.1
  linux-image-4.15.0-1080-aws     4.15.0-1080.84~16.04.1
  linux-image-4.15.0-1081-gcp     4.15.0-1081.92~16.04.1
  linux-image-4.15.0-1093-azure   4.15.0-1093.103~16.04.1
  linux-image-aws-hwe             4.15.0.1080.77
  linux-image-azure               4.15.0.1093.88
  linux-image-azure-edge          4.15.0.1093.88
  linux-image-gcp                 4.15.0.1081.83
  linux-image-gke                 4.15.0.1081.83
  linux-image-oracle              4.15.0.1051.42

Ubuntu 14.04 ESM:
  linux-image-4.15.0-1093-azure   4.15.0-1093.103~14.04.1
  linux-image-azure               4.15.0.1093.70

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.