[ GLSA 201001-08 ] SquirrelMail: Multiple vulnerabilities

[Stefan Behte <craig () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 201001-08
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                                            http://security.gentoo.org/
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  Severity: High
     Title: SquirrelMail: Multiple vulnerabilities
      Date: January 13, 2010
      Bugs: #269567, #270671
        ID: 201001-08

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Synopsis
========

Multiple vulnerabilities were found in SquirrelMail of which the worst
results in remote code execution.

Background
==========

SquirrelMail is a standards-based webmail package written in PHP.

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

    -------------------------------------------------------------------
     Package                   /  Vulnerable  /             Unaffected
    -------------------------------------------------------------------
  1  mail-client/squirrelmail      < 1.4.19                  >= 1.4.19

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

Multiple vulnerabilities were found in SquirrelMail:

* Niels Teusink reported multiple input sanitation flaws in certain
  encrypted strings in e-mail headers, related to
  contrib/decrypt_headers.php, PHP_SELF and the query string (aka
  QUERY_STRING) (CVE-2009-1578).

* Niels Teusink also reported that the map_yp_alias() function in
  functions/imap_general.php does not filter shell metacharacters in a
  username and that the original patch was incomplete (CVE-2009-1381,
  CVE-2009-1579).

* Tomas Hoger discovered an unspecified session fixation
  vulnerability (CVE-2009-1580).

* Luc Beurton reported that functions/mime.php does not protect the
  application's content from Cascading Style Sheets (CSS) positioning
  in HTML e-mail messages (CVE-2009-1581).

Impact
======

The vulnerabilities allow remote attackers to execute arbitrary code
with the privileges of the user running the web server, to hijack web
sessions via a crafted cookie, to spoof the user interface and to
conduct Cross-Site Scripting and phishing attacks, via a specially
crafted message.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All SquirrelMail users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=mail-client/squirrelmail-1.4.19"

References
==========

  [ 1 ] CVE-2009-1381
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1381
  [ 2 ] CVE-2009-1578
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1578
  [ 3 ] CVE-2009-1579
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1579
  [ 4 ] CVE-2009-1580
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1580
  [ 5 ] CVE-2009-1581
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1581

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

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

  http://security.gentoo.org/glsa/glsa-201001-08.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
https://bugs.gentoo.org.

License
=======

Copyright 2010 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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