Ubuntu 20.04 LTS: USN-7173-2 critical: kernel security issues

ubuntu

December 20, 2024

Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

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

- linux-bluefield: Linux kernel for NVIDIA BlueField platforms

- linux-ibm: Linux kernel for IBM cloud systems

- linux-oracle: Linux kernel for Oracle Cloud systems

- linux-xilinx-zynqmp: Linux kernel for Xilinx ZynqMP processors

- linux-aws-5.4: Linux kernel for Amazon Web Services (AWS) systems

- linux-ibm-5.4: Linux kernel for IBM cloud systems

- linux-oracle-5.4: Linux kernel for Oracle Cloud systems

Details:

Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not

properly handle certain error conditions, leading to a NULL pointer

dereference. A local attacker could possibly trigger this vulnerability to

cause a denial of service. (CVE-2022-38096)

Several security issues were discovered in the Linux kernel.

An attacker could possibly use these to compromise the system.

This update corrects flaw...

Read the Full Advisory

Topics Covered

security advisory Ubuntu kernel issue IBM Oracle NVIDIA AWS

Update Instructions

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

Ubuntu 20.04 LTS
   linux-image-5.4.0-1056-xilinx-zynqmp  5.4.0-1056.60
   linux-image-5.4.0-1084-ibm      5.4.0-1084.89
   linux-image-5.4.0-1097-bluefield  5.4.0-1097.104
   linux-image-5.4.0-1136-oracle   5.4.0-1136.145
   linux-image-5.4.0-1137-aws      5.4.0-1137.147
   linux-image-aws-lts-20.04       5.4.0.1137.134
   linux-image-bluefield           5.4.0.1097.93
   linux-image-ibm-lts-20.04       5.4.0.1084.113
   linux-image-oracle-lts-20.04    5.4.0.1136.129
   linux-image-xilinx-zynqmp       5.4.0.1056.56

Ubuntu 18.04 LTS
   linux-image-5.4.0-1084-ibm      5.4.0-1084.89~18.04.1
                                   Available with Ubuntu Pro
   linux-image-5.4.0-1136-oracle   5.4.0-1136.145~18.04.1
                                   Available with Ubuntu Pro
   linux-image-5.4.0-1137-aws      5.4.0-1137.147~18.04.1
                                   Available with Ubuntu Pro
   linux-image-aws                 5.4.0.1137.147~18.04.1
                                   Available with Ubuntu Pro
   linux-image-ibm                 5.4.0.1084.89~18.04.1
                                   Available with Ubuntu Pro
   linux-image-oracle              5.4.0.1136.145~18.04.1
                                   Available with Ubuntu Pro

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.