Ubuntu 18.04 LTS: 5164-1 Critical: Kernel DoS and Memory Issues

ubuntu

November 30, 2021

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-dell300x: Linux kernel for Dell 300x platforms

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

- linux-kvm: Linux kernel for cloud environments

- linux-oracle: Linux kernel for Oracle Cloud systems

- linux-raspi2: Linux kernel for Raspberry Pi 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-hwe: Linux hardware enablement (HWE) kernel

Details:

It was discovered that the Option USB High Speed Mobile device driver in

the Linux kernel did not properly handle error conditions. A physically

proximate attacker could use this to cause a denial of service (system

c...

Read the Full Advisory

Topics Covered

security advisory kernel ubuntu memory exhaustion system crash cloud systems

Update Instructions

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

Ubuntu 18.04 LTS:
  linux-image-4.15.0-1031-dell300x  4.15.0-1031.36
  linux-image-4.15.0-1084-oracle  4.15.0-1084.92
  linux-image-4.15.0-1099-raspi2  4.15.0-1099.106
  linux-image-4.15.0-1103-kvm     4.15.0-1103.105
  linux-image-4.15.0-1112-gcp     4.15.0-1112.126
  linux-image-4.15.0-1116-aws     4.15.0-1116.123
  linux-image-4.15.0-1116-snapdragon  4.15.0-1116.125
  linux-image-4.15.0-1127-azure   4.15.0-1127.140
  linux-image-4.15.0-163-generic  4.15.0-163.171
  linux-image-4.15.0-163-generic-lpae  4.15.0-163.171
  linux-image-4.15.0-163-lowlatency  4.15.0-163.171
  linux-image-aws-lts-18.04       4.15.0.1116.119
  linux-image-azure-lts-18.04     4.15.0.1127.100
  linux-image-dell300x            4.15.0.1031.33
  linux-image-gcp-lts-18.04       4.15.0.1112.131
  linux-image-generic             4.15.0.163.152
  linux-image-generic-lpae        4.15.0.163.152
  linux-image-kvm                 4.15.0.1103.99
  linux-image-lowlatency          4.15.0.163.152
  linux-image-oracle-lts-18.04    4.15.0.1084.94
  linux-image-raspi2              4.15.0.1099.97
  linux-image-snapdragon          4.15.0.1116.119
  linux-image-virtual             4.15.0.163.152

Ubuntu 16.04 ESM:
  linux-image-4.15.0-1084-oracle  4.15.0-1084.92~16.04.1
  linux-image-4.15.0-1116-aws     4.15.0-1116.123~16.04.1
  linux-image-4.15.0-1127-azure   4.15.0-1127.140~16.04.1
  linux-image-4.15.0-163-generic  4.15.0-163.171~16.04.1
  linux-image-4.15.0-163-lowlatency  4.15.0-163.171~16.04.1
  linux-image-aws-hwe             4.15.0.1116.106
  linux-image-azure               4.15.0.1127.118
  linux-image-generic-hwe-16.04   4.15.0.163.156
  linux-image-lowlatency-hwe-16.04  4.15.0.163.156
  linux-image-oem                 4.15.0.163.156
  linux-image-oracle              4.15.0.1084.72
  linux-image-virtual-hwe-16.04   4.15.0.163.156

Ubuntu 14.04 ESM:
  linux-image-4.15.0-1127-azure   4.15.0-1127.140~14.04.1
  linux-image-azure               4.15.0.1127.100

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.