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Date: Thu, 12 May 2005 06:30:43 +0200
From: Sune Kloppenborg Jeppesen <jaervosz@...too.org>
To: gentoo-announce@...too.org
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200505-09 ] Gaim: Denial of Service and
	buffer overflow vulnerabilties

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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@...too.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

Content of type "application/pgp-signature" skipped

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