A xorg-server security update has been released for Debian GNU/Linux 10 to address two out of bound memory writes.

DLA 3068-1: xorg-server security update

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Debian LTS Advisory DLA-3068-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Emilio Pozuelo Monfort
August 04, 2022   https://wiki.debian.org/LTS
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Package : xorg-server
Version : 2:1.20.4-1+deb10u5
CVE ID : CVE-2022-2319 CVE-2022-2320

Jan-Niklas Sohn discovered two out of bound memory writes in X.Org Server's
ProcXkbSetGeometry and ProcXkbSetDeviceInfo Xkb extensions. These issues
could be exploited by an attacker to cause denial of service, privilege
escalation or arbitrary code execution.

For Debian 10 buster, these problems have been fixed in version
2:1.20.4-1+deb10u5.

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/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