GLSA-200901-11 : Avahi: Denial of Service

This script is Copyright (C) 2009-2014 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The 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.

Impact :

A remote attacker could send specially crafted packets to the daemon,
leading to its crash.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200901-11.xml

Solution :

All Avahi users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-dns/avahi-0.6.24'

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
Public Exploit Available : true

Family: Gentoo Local Security Checks

Nessus Plugin ID: 35380 (gentoo_GLSA-200901-11.nasl)

Bugtraq ID:

CVE ID: CVE-2008-5081