Mozilla Firefox: Multiple vulnerabilities

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200703-04 / mozilla-firefox
Release Date	March 02, 2007
Latest Revision	March 02, 2007: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
www-client/mozilla-firefox	< 2.0.0.2	revision >= 1.5.0.10, >= 2.0.0.2	All supported architectures
www-client/mozilla-firefox-bin	< 2.0.0.2	revision >= 1.5.0.10, >= 2.0.0.2	All supported architectures

Related bugreports: #165555

Synopsis

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

2. Impact Information

Background

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

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.

3. Resolution Information

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:

Code Listing 3.1: Resolution

# 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:

Code Listing 3.2: Resolution

# 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:

Code Listing 3.3: Resolution

# 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:

Code Listing 3.4: Resolution

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

4. References

Updated March 02, 2007

Summary: This is a Gentoo Linux Security Advisory

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