1. Ubuntu Security Notices
  2. USN-5846-1

USN-5846-1: X.Org X Server vulnerability

Publication date

7 February 2023

Overview

X.Org X Server could be made to crash or run programs as the administrator if it received specially crafted input.

Releases

Packages

Details

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled
certain memory operations. An attacker could possibly use these issues to
cause the X Server to crash, execute arbitrary code, or escalate
privileges.

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled
certain memory operations. An attacker could possibly use these issues to
cause the X Server to crash, execute arbitrary code, or escalate
privileges.

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
22.10 kinetic xserver-xorg-core –  2:21.1.4-2ubuntu1.5
xwayland –  2:22.1.3-2ubuntu0.3
22.04 jammy xserver-xorg-core –  2:21.1.3-2ubuntu2.7
xwayland –  2:22.1.1-1ubuntu0.5
20.04 focal xserver-xorg-core –  2:1.20.13-1ubuntu1~20.04.6
xwayland –  2:1.20.13-1ubuntu1~20.04.6
18.04 bionic xserver-xorg-core –  2:1.19.6-1ubuntu4.14
xwayland –  2:1.19.6-1ubuntu4.14
xwayland-hwe-18.04 –  2:1.20.8-2ubuntu2.2~18.04.10
xserver-xorg-core-hwe-18.04 –  2:1.20.8-2ubuntu2.2~18.04.10

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References

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