Debian Security Advisory

DLA-3310-1 xorg-server -- LTS security update

Date Reported:
07 Feb 2023
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2023-0494.
More information:

Jan-Niklas Sohn, working with Trend Micro Zero Day Initiative, discovered a vulnerability in the X.Org X server. A potential use after free mighty result in local privilege escalation if the X server is running privileged or remote code execution during ssh X forwarding sessions.

For Debian 10 buster, this problem has been fixed in version 2:1.20.4-1+deb10u8.

We recommend that you upgrade your xorg-server packages.

For the detailed security status of xorg-server please refer to its security tracker page at:

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: