Date: Thu, 15 Jan 2009 00:05:35 +0100
From: Pierre-Yves Rofes <py@gentoo.org.>
To: [email protected]Subject: [ GLSA 200901-11 ] Avahi: Denial of Service
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Gentoo Linux Security Advisory GLSA 200901-11
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http://security.gentoo.org/=
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Severity: Normal
Title: Avahi: Denial of Service
Date: January 14, 2009
Bugs: #250913
ID: 200901-11
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Synopsis
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A Denial of Service vulnerability has been discovered in Avahi.
Background
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Avahi is a system that facilitates service discovery on a local
network.
Affected packages
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Package / Vulnerable / Unaffected
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1 net-dns/avahi < 0.6.24 >=3D 0.6.2=
4
Description
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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
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A remote attacker could send specially crafted packets to the daemon,
leading to its crash.
Workaround
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There is no known workaround at this time.
Resolution
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All Avahi users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=3Dnet-dns/avahi-0.6.24"
References
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[ 1 ] CVE-2008-5081
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2008-5081
Availability
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This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200901-11.xml
Concerns?
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Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
[email protected] or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
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Copyright 2009 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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