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Gentoo Linux Security Advisory                           GLSA 200802-03
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Horde IMP: Security bypass
      Date: February 11, 2008
      Bugs: #205377
        ID: 200802-03

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Synopsis
========

Insufficient checks in Horde may allow a remote attacker to bypass
security restrictions.

Background
==========

Horde IMP provides a web-based access to IMAP and POP3 mailboxes.

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

    -------------------------------------------------------------------
     Package             /  Vulnerable  /                   Unaffected
    -------------------------------------------------------------------
  1  www-apps/horde-imp       < 4.1.6                         >= 4.1.6

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

Ulf Harnhammar, Secunia Research discovered that the "frame" and
"frameset" HTML tags are not properly filtered out. He also reported
that certain HTTP requests are executed without being checked.

Impact
======

A remote attacker could entice a user to open a specially crafted HTML
e-mail, possibly resulting in the deletion of arbitrary e-mail
messages.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Horde IMP users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=www-apps/horde-imp-4.1.6"

References
==========

  [ 1 ] CVE-2007-6018
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6018

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

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

  http://security.gentoo.org/glsa/glsa-200802-03.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 2008 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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