A pixman security update has been released for Debian GNU/Linux 11 to address a heap-based buffer overflow.

DSA 5276-1: pixman security update

- -------------------------------------------------------------------------
Debian Security Advisory DSA-5276-1 security@debian.org
  https://www.debian.org/security/ Salvatore Bonaccorso
November 12, 2022   https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : pixman
CVE ID : CVE-2022-44638
Debian Bug : 1023427

Maddie Stone reported a heap-based buffer overflow flaw in pixman, a
pixel-manipulation library for X and cairo, which could result in denial
of service or potentially the execution of arbitrary code.

For the stable distribution (bullseye), this problem has been fixed in
version 0.40.0-1.1~deb11u1.

We recommend that you upgrade your pixman packages.

For the detailed security status of pixman please refer to its security
tracker page at:
  https://security-tracker.debian.org/tracker/pixman

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