A dbus security update has been released for Debian GNU/Linux 11 to address multiple vulnerabilities.

DSA 5250-1: dbus security update

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Debian Security Advisory DSA-5250-1 security@debian.org
  https://www.debian.org/security/ Moritz Muehlenhoff
October 06, 2022   https://www.debian.org/security/faq
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Package : dbus
CVE ID : CVE-2022-42010 CVE-2022-42011 CVE-2022-42012
Debian Bug : 1004543 1005889

Evgeny Vereshchagin discovered multiple vulnerabilities in D-Bus, a
simple interprocess messaging system, which may result in denial of
service by an authenticated user.

For the stable distribution (bullseye), these problems have been fixed in
version 1.12.24-0+deb11u1.

We recommend that you upgrade your dbus packages.

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

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/