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To: gentoo-announce@g.o
From: Alex Legler <a3li@g.o>
Subject: [ GLSA 200905-07 ] Pidgin: Multiple vulnerabilities
Date: Mon, 25 May 2009 23:59:01 +0200
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Gentoo Linux Security Advisory                           GLSA 200905-07
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Pidgin: Multiple vulnerabilities
      Date: May 25, 2009
      Bugs: #270811
        ID: 200905-07

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Synopsis
========

Multiple vulnerabilities in Pidgin might allow for the remote execution
of arbitrary code or a Denial of Service.

Background
==========

Pidgin (formerly Gaim) is an instant messaging client for a variety of
instant messaging protocols.

Affected packages
=================

    -------------------------------------------------------------------
     Package        /  Vulnerable  /                        Unaffected
    -------------------------------------------------------------------
  1  net-im/pidgin       < 2.5.6                              >= 2.5.6

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

Multiple vulnerabilities have been discovered in Pidgin:

* Veracode reported a boundary error in the "XMPP SOCKS5 bytestream
  server" when initiating an outgoing file transfer (CVE-2009-1373).

* Ka-Hing Cheung reported a heap corruption flaw in the QQ protocol
  handler (CVE-2009-1374).

* A memory corruption flaw in "PurpleCircBuffer" was disclosed by
  Josef Andrysek (CVE-2009-1375).

* The previous fix for CVE-2008-2927 contains a cast from uint64 to
  size_t, possibly leading to an integer overflow (CVE-2009-1376, GLSA
  200901-13).

Impact
======

A remote attacker could send specially crafted messages or files using
the MSN, XMPP or QQ protocols, possibly resulting in the execution of
arbitrary code with the privileges of the user running the application,
or a Denial of Service. NOTE: Successful exploitation might require the
victim's interaction.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Pidgin users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-im/pidgin-2.5.6"

References
==========

  [ 1 ] CVE-2009-1373
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1373
  [ 2 ] CVE-2009-1374
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1374
  [ 3 ] CVE-2009-1375
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1375
  [ 4 ] CVE-2009-1376
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1376
  [ 5 ] GLSA 200901-13
        http://www.gentoo.org/security/en/glsa/glsa-200901-13.xml

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

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

  http://security.gentoo.org/glsa/glsa-200905-07.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@g.o or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

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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Updated Jun 17, 2009

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