From: Sune Kloppenborg Jeppesen <jaervosz@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200505-09 ] Gaim: Denial of Service and buffer overflow vulnerabilties
Date: Thu, 12 May 2005 06:30:43 +0200
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Organization: Gentoo Linux Security Team
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Gentoo Linux Security Advisory GLSA 200505-09
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http://security.gentoo.org/
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Severity: High
Title: Gaim: Denial of Service and buffer overflow vulnerabilties
Date: May 12, 2005
Bugs: #91862
ID: 200505-09
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Synopsis
========
Gaim contains two vulnerabilities, potentially resulting in the
execution of arbitrary code or Denial of Service.
Background
==========
Gaim is a full featured instant messaging client which handles a
variety of instant messaging protocols.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-im/gaim < 1.3.0 >= 1.3.0
Description
===========
Stu Tomlinson discovered that Gaim is vulnerable to a remote stack
based buffer overflow when receiving messages in certain protocols,
like Jabber and SILC, with a very long URL (CAN-2005-1261). Siebe
Tolsma discovered that Gaim is also vulnerable to a remote Denial of
Service attack when receiving a specially crafted MSN message
(CAN-2005-1262).
Impact
======
A remote attacker could cause a buffer overflow by sending an instant
message with a very long URL, potentially leading to the execution of
malicious code. By sending a SLP message with an empty body, a remote
attacker could cause a Denial of Service or crash of the Gaim client.
Workaround
==========
There are no known workarounds at this time.
Resolution
==========
All Gaim users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-im/gaim-1.3.0"
References
==========
[ 1 ] CAN-2005-1261
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1261
[ 2 ] CAN-2005-1262
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1262
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200505-09.xml
Concerns?
=========
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
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2005 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/2.0
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