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

Gentoo Linux Security Advisory GLSA 200712-21
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http://security.gentoo.org/
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Severity: Normal
Title: Mozilla Firefox, SeaMonkey: Multiple vulnerabilities
Date: December 29, 2007
Bugs: #198965, #200909
ID: 200712-21

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Synopsis
========

Multiple vulnerabilities have been discovered in Mozilla Firefox and
Mozilla Seamonkey.

Background
==========

Mozilla Firefox is a cross-platform web browser from Mozilla. SeaMonkey
is a free, cross-platform Internet suite.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 www-client/mozilla-firefox < 2.0.0.11 >= 2.0.0.11
2 www-client/mozilla-firefox-bin < 2.0.0.11 >= 2.0.0.11
3 www-client/seamonkey < 1.1.7 >= 1.1.7
4 www-client/seamonkey-bin < 1.1.7 >= 1.1.7
-------------------------------------------------------------------
4 affected packages on all of their supported architectures.
-------------------------------------------------------------------

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

Jesse Ruderman and Petko D. Petkov reported that the jar protocol
handler in Mozilla Firefox and Seamonkey does not properly check MIME
types (CVE-2007-5947). Gregory Fleischer reported that the
window.location property can be used to generate a fake HTTP Referer
(CVE-2007-5960). Multiple memory errors have also been reported
(CVE-2007-5959).

Impact
======

A remote attacker could possibly exploit these vulnerabilities to
execute arbitrary code in the context of the browser and conduct
Cross-Site-Scripting or Cross-Site Request Forgery attacks.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Mozilla Firefox users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot -v ">=www-client/mozilla-firefox-2.0.0.11"

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

# emerge --sync
# emerge --ask -1 -v ">=www-client/mozilla-firefox-bin-2.0.0.11"

All SeaMonkey users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/seamonkey-1.1.7"

All SeaMonkey binary users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot -v ">=www-client/seamonkey-bin-1.1.7"

References
==========

[ 1 ] CVE-2007-5947
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5947
[ 2 ] CVE-2007-5959
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5959
[ 3 ] CVE-2007-5960
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5960

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

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

http://security.gentoo.org/glsa/glsa-200712-21.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 2007 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