CVE-2021-3502

A flaw was found in avahi 0.8-5. A reachable assertion is present in
avahi_s_host_name_resolver_start function allowing a local attacker to
crash the avahi service by requesting hostname resolutions through the
avahi socket or dbus methods for invalid hostnames. The highest threat from
this vulnerability is to the service availability.

Bugs

• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=986018&gt;
• <https://github.com/lathiat/avahi/issues/338&gt;
• <https://bugzilla.redhat.com/show_bug.cgi?id=1946914&gt;

Notes