A new security update has been released for Gentoo Linux - Mozilla Thunderbird: Multiple vulnerabilities. Here the announcement:

Gentoo Linux Security Advisory GLSA 200606-21
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http://security.gentoo.org/
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Severity: Normal
Title: Mozilla Thunderbird: Multiple vulnerabilities
Date: June 19, 2006
Bugs: #135256
ID: 200606-21

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Synopsis
========

Several vulnerabilities in Mozilla Thunderbird allow cross site
scripting, JavaScript privilege escalation and possibly execution of
arbitrary code.

Background
==========

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

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 mozilla-thunderbird < 1.5.0.4 >= 1.5.0.4
2 mozilla-thunderbird-bin < 1.5.0.4 >= 1.5.0.4
-------------------------------------------------------------------
2 affected packages on all of their supported architectures.
-------------------------------------------------------------------

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

Several vulnerabilities were found and fixed in Mozilla Thunderbird.
For details, please consult the references below.

Impact
======

A remote attacker could craft malicious emails that would leverage
these issues to inject and execute arbitrary script code with elevated
privileges, spoof content, and possibly execute arbitrary code with the
rights of the user running the application.

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-1.5.0.4"

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

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-client/mozilla-thunderbird-bin-1.5.0.4"

Note: There is no stable fixed version for the Alpha architecture yet.
Users of Mozilla Thunderbird on Alpha should consider unmerging it
until such a version is available.

References
==========

[ 1 ] CVE-2006-2775
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2775
[ 2 ] CVE-2006-2776
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2776
[ 3 ] CVE-2006-2778
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2778
[ 4 ] CVE-2006-2779
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2779
[ 5 ] CVE-2006-2780
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2780
[ 6 ] CVE-2006-2781
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2781
[ 7 ] CVE-2006-2783
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2783
[ 8 ] CVE-2006-2786
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2786
[ 9 ] CVE-2006-2787
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2787
[ 10 ] Mozilla Foundation Security Advisories
http://www.mozilla.org/projects/security/known-vulnerabilities.html#Thunderbird

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

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

http://security.gentoo.org/glsa/glsa-200606-21.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 2006 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