- -------------------------------------------------------------------------
Debian LTS Advisory DLA-3372-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                    Thorsten Alteholz
March 29, 2023                                https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package        : xorg-server
Version        : 2:1.20.4-1+deb10u9
CVE ID         : CVE-2023-1393


Jan-Niklas Sohn discovered that a use-after-free flaw in the Composite
extension of the X.org X server may result in privilege escalation if
the X server is running under the root user.


For Debian 10 buster, this problem has been fixed in version
2:1.20.4-1+deb10u9.

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-3372-1: xorg-server security update

March 29, 2023
Jan-Niklas Sohn discovered that a use-after-free flaw in the Composite extension of the X.org X server may result in privilege escalation if the X server is running under the root ...

Summary

Jan-Niklas Sohn discovered that a use-after-free flaw in the Composite
extension of the X.org X server may result in privilege escalation if
the X server is running under the root user.


For Debian 10 buster, this problem has been fixed in version
2:1.20.4-1+deb10u9.

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+deb10u9
CVE ID : CVE-2023-1393

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