- -------------------------------------------------------------------------
Debian LTS Advisory DLA-3310-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                    Thorsten Alteholz
February 07, 2023                             https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package        : xorg-server
Version        : 2:1.20.4-1+deb10u8
CVE ID         : CVE-2023-0494


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:
https://security-tracker.debian.org/tracker/source-package/xorg-server

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

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

February 7, 2023
Jan-Niklas Sohn, working with Trend Micro Zero Day Initiative, discovered a vulnerability in the X.Org X server

Summary

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:
https://security-tracker.debian.org/tracker/source-package/xorg-server

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



Severity
Package : xorg-server
Version : 2:1.20.4-1+deb10u8
CVE ID : CVE-2023-0494

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