Gentoo: Gaim Denial of Service issues
Posted by Benjamin D. Thomas   
Gentoo Gaim contains multiple vulnerabilities that can lead to a Denial of Service.
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Gentoo Linux Security Advisory                           GLSA 200504-05
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                                            http://security.gentoo.org/
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  Severity: Low
     Title: Gaim: Denial of Service issues
      Date: April 06, 2005
   Updated: April 06, 2005
      Bugs: #87903
        ID: 200504-05:02

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Synopsis
========

Gaim contains multiple vulnerabilities that can lead to a 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       < 1.2.1                                >= 1.2.1

Description
===========

Multiple vulnerabilities have been addressed in the latest release of
Gaim:

* A buffer overread in the gaim_markup_strip_html() function, which
  is used when logging conversations (CAN-2005-0965).

* Markup tags are improperly escaped using Gaim's IRC plugin
  (CAN-2005-0966).

* Sending a specially crafted file transfer request to a Gaim Jabber
  user can trigger a crash (CAN-2005-0967).

Impact
======

An attacker could possibly cause a Denial of Service by exploiting any
of these vulnerabilities.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Gaim users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-im/gaim-1.2.1"

References
==========

  [ 1 ] CAN-2005-0967
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0967
  [ 2 ] CAN-2005-0966
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0966
  [ 3 ] CAN-2005-0965
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0965
  [ 4 ] Gaim Vulnerability Index
        http://gaim.sourceforge.net/security/

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200504-05.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