CVE-2011-1002: Avahi

Medium severity, CVSS 5.0. EPSS: 29.4% chance of exploitation in the next 30 days.

avahi-core/socket.c in avahi-daemon in Avahi before 0.6.29 allows remote attackers to cause a denial of service (infinite loop) via an empty mDNS (1) IPv4 or (2) IPv6 UDP packet to port 5353. NOTE: this vulnerability exists because of an incorrect fix for CVE-2010-2244.

Affected products

• Avahi Avahi: up to and including 0.6.28; version 0.1 only; version 0.2 only; version 0.3 only; version 0.4 only; version 0.5 only; …
• Canonical Ubuntu Linux: version 8.04 only; version 9.10 only; version 10.04 only; version 10.10 only
• Debian Debian Linux: version 5.0 only; version 6.0 only; version 7.0 only
• Fedoraproject Fedora: version 15 only
• Red Hat Enterprise Linux: version 5.0 only; version 6.0 only

Published 2011-02-22. Last modified 2026-06-16.