An avahi security update has been released for Debian GNU/Linux 8 and 9 Extended LTS to address a local Denial of Service (DoS) vulnerability.

ELA-844-1 avahi security update

Package : avahi
Version : 0.6.31-5+deb8u2 (jessie), 0.6.32-2+deb9u2 (stretch)

Related CVEs :
CVE-2023-1981

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.

  ELA-844-1 avahi security update