An avahi security update has been released for Debian GNU/Linux 10 LTS to address a local Denial of Service (DoS) vulnerability.

DLA 3414-1: avahi security update

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Debian LTS Advisory DLA-3414-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Chris Lamb
May 02, 2023   https://wiki.debian.org/LTS
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Package : avahi
Version : 0.7-4+deb10u2
CVE ID : CVE-2023-1981
Debian Bug : 1034594

It was discovered that there was a local Denial of Service (DoS)
vulnerability in Avahi, a system that facilitates service discovery
on a local network.

The avahi-daemon process could have been crashed over the DBus
message bus.

For Debian 10 buster, this problem has been fixed in version
0.7-4+deb10u2.

We recommend that you upgrade your avahi packages.

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

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