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USN-7085-2: X.Org X Server vulnerability

30 October 2024

X.Org X Server could be made to crash or run programs if it received specially crafted data.

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Releases

Packages

Details

USN-7085-1 fixed a vulnerability in X.Org. This update provides
the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.

Original advisory details:

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled
certain memory operations in the X Keyboard Extension. An attacker could
use this issue to cause the X Server to crash, leading to a denial of
service, or possibly execute arbitrary code.

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 18.04
Ubuntu 16.04

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

References

Related notices

  • USN-7085-1: xnest, xvfb, xserver-xorg-dev, xserver-common, xwayland, xserver-xorg-legacy, xorg-server-source, xorg-server, xdmx-tools, xserver-xorg-core, xdmx, xserver-xephyr