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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#Thun
derbird
[ 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 (at) gentoo (dot) org [email concealed] 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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