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Gentoo Linux Security Advisory 200703-4

Gentoo Linux Security Advisory 200703-4
Posted Mar 6, 2007
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory GLSA 200703-04 - Tom Ferris reported a heap-based buffer overflow involving wide SVG stroke widths that affects Mozilla Firefox 2 only. Various researchers reported some errors in the JavaScript engine potentially leading to memory corruption. Mozilla Firefox also contains minor vulnerabilities involving cache collision and unsafe pop-up restrictions, filtering or CSS rendering under certain conditions. Versions less than 2.0.0.2 are affected.

tags | advisory, overflow, javascript, vulnerability
systems | linux, gentoo
advisories | CVE-2006-6077, CVE-2007-0775, CVE-2007-0776, CVE-2007-0777, CVE-2007-0778, CVE-2007-0779, CVE-2007-0780, CVE-2007-0800, CVE-2007-0801, CVE-2007-0981, CVE-2007-0995
MD5 | 6331191602764866f36202dbe22f78c0

Gentoo Linux Security Advisory 200703-4

Change Mirror Download
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Gentoo Linux Security Advisory GLSA 200703-04
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http://security.gentoo.org/
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Severity: Normal
Title: Mozilla Firefox: Multiple vulnerabilities
Date: March 02, 2007
Bugs: #165555
ID: 200703-04

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Synopsis
========

Multiple vulnerabilities have been reported in Mozilla Firefox, some of
which may allow user-assisted arbitrary remote code execution.

Background
==========

Mozilla Firefox is a popular open-source web browser from the Mozilla
Project.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 www-client/mozilla-firefox < 2.0.0.2 *>= 1.5.0.10
>= 2.0.0.2
2 www-client/mozilla-firefox-bin < 2.0.0.2 *>= 1.5.0.10
>= 2.0.0.2
-------------------------------------------------------------------
2 affected packages on all of their supported architectures.
-------------------------------------------------------------------

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

Tom Ferris reported a heap-based buffer overflow involving wide SVG
stroke widths that affects Mozilla Firefox 2 only. Various researchers
reported some errors in the JavaScript engine potentially leading to
memory corruption. Mozilla Firefox also contains minor vulnerabilities
involving cache collision and unsafe pop-up restrictions, filtering or
CSS rendering under certain conditions.

Impact
======

An attacker could entice a user to view a specially crafted web page
that will trigger one of the vulnerabilities, possibly leading to the
execution of arbitrary code. It is also possible for an attacker to
spoof the address bar, steal information through cache collision,
bypass the local files protection mechanism with pop-ups, or perform
cross-site scripting attacks, leading to the exposure of sensitive
information, like user credentials.

Workaround
==========

There is no known workaround at this time for all of these issues, but
most of them can be avoided by disabling JavaScript.

Resolution
==========

Users upgrading to the following releases of Mozilla Firefox should
note that this upgrade has been found to lose the saved passwords file
in some cases. The saved passwords are encrypted and stored in the
'signons.txt' file of ~/.mozilla/ and we advise our users to save that
file before performing the upgrade.

All Mozilla Firefox 1.5 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/mozilla-firefox-1.5.0.10"

All Mozilla Firefox 1.5 binary users should upgrade to the latest
version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/mozilla-firefox-bin-1.5.0.10"

All Mozilla Firefox 2.0 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/mozilla-firefox-2.0.0.2"

All Mozilla Firefox 2.0 binary users should upgrade to the latest
version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/mozilla-firefox-bin-2.0.0.2"

References
==========

[ 1 ] CVE-2006-6077
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6077
[ 2 ] CVE-2007-0775
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0775
[ 3 ] CVE-2007-0776
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0776
[ 4 ] CVE-2007-0777
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0777
[ 5 ] CVE-2007-0778
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0778
[ 6 ] CVE-2007-0779
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0779
[ 7 ] CVE-2007-0780
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0780
[ 8 ] CVE-2007-0800
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0800
[ 9 ] CVE-2007-0801
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0801
[ 10 ] CVE-2007-0981
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0981
[ 11 ] CVE-2007-0995
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0995
[ 12 ] Mozilla password loss bug
https://bugzilla.mozilla.org/show_bug.cgi?id=360493#c366

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

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

http://security.gentoo.org/glsa/glsa-200703-04.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

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