New Mozilla Thunderbird packages are available for Gentoo Linux

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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
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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