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

7 February 2023

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

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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.

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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.

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 22.10
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04

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

References

Related notices

  • USN-5778-2: xserver-xorg-legacy, xserver-xorg-dev, xorg-server-source, xorg-server-hwe-16.04, xorg-server-source-hwe-16.04, xwayland, xdmx-tools, xdmx, xmir-hwe-16.04, xserver-xephyr, xorg-server, xnest, xserver-xorg-core-hwe-16.04, xserver-xorg-core, xserver-xorg-xmir, xserver-xorg-dev-hwe-16.04, xvfb, xserver-xephyr-hwe-16.04, xmir, xserver-common, xserver-xorg-legacy-hwe-16.04, xwayland-hwe-16.04