GLSA-200901-11 : Avahi: Denial of Service
Medium Nessus Plugin ID 35380
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200901-11 (Avahi: Denial of Service)
Hugo Dias reported a failed assertion in the originates_from_local_legacy_unicast_socket() function in avahi-core/server.c when processing mDNS packets with a source port of 0.
A remote attacker could send specially crafted packets to the daemon, leading to its crash.
There is no known workaround at this time.
SolutionAll Avahi users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-dns/avahi-0.6.24'