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

Gentoo Linux Security Advisory GLSA 200608-03
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: Mozilla Firefox: Multiple vulnerabilities
Date: August 03, 2006
Bugs: #141842
ID: 200608-03

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

The Mozilla Foundation has reported numerous security vulnerabilities
related to Mozilla Firefox.

Background
==========

Mozilla Firefox is a redesign of the Mozilla Navigator component. The
goal is to produce a cross-platform stand-alone browser application.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 www-client/mozilla-firefox < 1.5.0.5 >= 1.5.0.5
2 www-client/mozilla-firefox-bin < 1.5.0.5 >= 1.5.0.5
-------------------------------------------------------------------
2 affected packages on all of their supported architectures.
-------------------------------------------------------------------

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

The following vulnerabilities have been reported:

* Benjamin Smedberg discovered that chrome URL's could be made to
reference remote files.

* Developers in the Mozilla community looked for and fixed several
crash bugs to improve the stability of Mozilla clients.

* "shutdown" reports that cross-site scripting (XSS) attacks could be
performed using the construct XPCNativeWrapper(window).Function(...),
which created a function that appeared to belong to the window in
question even after it had been navigated to the target site.

* "shutdown" reports that scripts granting the UniversalBrowserRead
privilege can leverage that into the equivalent of the far more
powerful UniversalXPConnect since they are allowed to "read" into a
privileged context.

* "moz_bug_r_a4" reports that A malicious Proxy AutoConfig (PAC)
server could serve a PAC script that can execute code with elevated
privileges by setting the required FindProxyForURL function to the
eval method on a privileged object that leaked into the PAC sandbox.

* "moz_bug_r_a4" discovered that Named JavaScript functions have a
parent object created using the standard Object() constructor
(ECMA-specified behavior) and that this constructor can be redefined
by script (also ECMA-specified behavior).

* Igor Bukanov and shutdown found additional places where an untimely
garbage collection could delete a temporary object that was in active
use.

* Georgi Guninski found potential integer overflow issues with long
strings in the toSource() methods of the Object, Array and String
objects as well as string function arguments.

* H. D. Moore reported a testcase that was able to trigger a race
condition where JavaScript garbage collection deleted a temporary
variable still being used in the creation of a new Function object.

* A malicious page can hijack native DOM methods on a document object
in another domain, which will run the attacker's script when called
by the victim page.

* Secunia Research has discovered a vulnerability which is caused due
to an memory corruption error within the handling of simultaneously
happening XPCOM events. This leads to use of a deleted timer object.

* An anonymous researcher for TippingPoint and the Zero Day
Initiative showed that when used in a web page Java would reference
properties of the window.navigator object as it started up.

* Thilo Girmann discovered that in certain circumstances a JavaScript
reference to a frame or window was not properly cleared when the
referenced content went away.

Impact
======

A user can be enticed to open specially crafted URLs, visit webpages
containing malicious JavaScript or execute a specially crafted script.
These events could lead to the execution of arbitrary code, or the
installation of malware on the user's computer.

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 --verbose ">=www-client/mozilla-firefox-1.5.0.5"

Users of the binary package should upgrade as well:

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/mozilla-firefox-bin-1.5.0.5"

References
==========

[ 1 ] CVE-2006-3113
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3113
[ 2 ] CVE-2006-3677
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3677
[ 3 ] CVE-2006-3801
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3801
[ 4 ] CVE-2006-3802
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3802
[ 5 ] CVE-2006-3803
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3803
[ 6 ] CVE-2006-3805
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3805
[ 7 ] CVE-2006-3806
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3806
[ 8 ] CVE-2006-3807
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3807
[ 9 ] CVE-2006-3808
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3808
[ 10 ] CVE-2006-3809
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3809
[ 11 ] CVE-2006-3810
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3810
[ 12 ] CVE-2006-3811
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3811
[ 13 ] CVE-2006-3812
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3812

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

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

http://security.gentoo.org/glsa/glsa-200608-03.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