A zookeeper security update has been released for Debian GNU/Linux 11 and 12 to address an issue with SASL quorum peer authentication.

[SECURITY] [DSA 5544-1] zookeeper security update

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Debian Security Advisory DSA-5544-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
October 31, 2023 https://www.debian.org/security/faq
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Package : zookeeper
CVE ID : CVE-2023-44981

Damien Diederen discovered that SASL quorum peer authentication within
Zookeeper, a service for maintaining configuration information, was
insufficiently enforced in some configurations.

For the oldstable distribution (bullseye), this problem has been fixed
in version 3.4.13-6+deb11u1.

For the stable distribution (bookworm), this problem has been fixed in
version 3.8.0-11+deb12u1.

We recommend that you upgrade your zookeeper packages.

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

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/