A keepalived security update has been released for Debian GNU/Linux 10 LTS to address an issue that could lead to an access-control bypass.

DLA 3388-1: keepalived security update

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Debian LTS Advisory DLA-3388-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Markus Koschany
April 10, 2023   https://wiki.debian.org/LTS
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Package : keepalived
Version : 1:2.0.10-1+deb10u1
CVE ID : CVE-2021-44225

A flaw was found in keepalived, a failover and monitoring daemon for LVS
clusters, where an improper authentication vulnerability allows an
unprivileged user to change properties that could lead to an access-control
bypass.

For Debian 10 buster, this problem has been fixed in version
1:2.0.10-1+deb10u1.

We recommend that you upgrade your keepalived packages.

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

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