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Gentoo: Mozilla Thunderbird Multiple vulnerabilities Print E-mail
User Rating:      How can I rate this item?
Posted by Benjamin D. Thomas   
Gentoo Several vulnerabilities in Mozilla Thunderbird allow attacks ranging from execution of script code with elevated privileges to information leaks.
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Gentoo Linux Security Advisory                           GLSA 200507-17
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Mozilla Thunderbird: Multiple vulnerabilities
      Date: July 18, 2005
      Bugs: #98855
        ID: 200507-17

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Synopsis
========

Several vulnerabilities in Mozilla Thunderbird allow attacks ranging
from execution of script code with elevated privileges to information
leak.

Background
==========

Mozilla Thunderbird is the next-generation mail client from the Mozilla
project.

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

    -------------------------------------------------------------------
     Package                  /  Vulnerable  /              Unaffected
    -------------------------------------------------------------------
  1  mozilla-thunderbird           < 1.0.5                    >= 1.0.5
  2  mozilla-thunderbird-bin       < 1.0.5                    >= 1.0.5
    -------------------------------------------------------------------
     2 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

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

The following vulnerabilities were found and fixed in Mozilla
Thunderbird:

* "moz_bug_r_a4" and "shutdown" discovered that Thunderbird was
  improperly cloning base objects (MFSA 2005-56).

* "moz_bug_r_a4" also reported that Thunderbird was overly trusting
  contents, allowing privilege escalation via property overrides (MFSA
  2005-41, 2005-44), that it failed to validate XHTML DOM nodes
  properly (MFSA 2005-55), and that XBL scripts ran even when
  Javascript is disabled (MFSA 2005-46).

* "shutdown" discovered a possibly exploitable crash in
  InstallVersion.compareTo (MFSA 2005-50).

* Andreas Sandblad from Secunia reported that a child frame can call
  top.focus() even if the framing page comes from a different origin
  and has overridden the focus() routine (MFSA 2005-52).

* Georgi Guninski reported missing Install object instance checks in
  the native implementations of XPInstall-related JavaScript objects
  (MFSA 2005-40).

* Finally, Vladimir V. Perepelitsa discovered a memory disclosure bug
  in JavaScript's regular expression string replacement when using an
  anonymous function as the replacement argument (CAN-2005-0989 and
  MFSA 2005-33).

Impact
======

A remote attacker could craft malicious email messages that would
leverage these issues to inject and execute arbitrary script code with
elevated privileges or help in stealing information.

Workaround
==========

There are no known workarounds for all the issues at this time.

Resolution
==========

All Mozilla Thunderbird users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose
">=mail-client/mozilla-thunderbird-1.0.5"

All Mozilla Thunderbird binary users should upgrade to the latest
version:

    # emerge --sync
    # emerge --ask --oneshot --verbose
">=mail-client/mozilla-thunderbird-bin-1.0.5"

References
==========

  [ 1 ] Mozilla Foundation Security Advisories

http://www.mozilla.org/projects/security/known-vulnerabilities.html#Thunderbird
  [ 2 ] CAN-2005-0989
        http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0989

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

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

  http://security.gentoo.org/glsa/glsa-200507-17.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
 
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