CVE-2008-5081: Avahi

Medium severity, CVSS 5.0. EPSS: 59.2% chance of exploitation in the next 30 days.

The originates_from_local_legacy_unicast_socket function (avahi-core/server.c) in avahi-daemon in Avahi before 0.6.24 allows remote attackers to cause a denial of service (crash) via a crafted mDNS packet with a source port of 0, which triggers an assertion failure.

Affected products

• Avahi Avahi: up to and including 0.6.23; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …

Published 2008-12-17. Last modified 2026-06-16.