Gentoo Logo

Mozilla Firefox: Potential remote code execution


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200605-06 / mozilla-firefox
Release Date May 06, 2006
Latest Revision May 06, 2006: 01
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
www-client/mozilla-firefox < >=, < 1.5 All supported architectures
www-client/mozilla-firefox-bin < >=, < 1.5 All supported architectures

Related bugreports: #131138


The Mozilla Firefox 1.5 line is vulnerable to a buffer overflow in the JavaScript extension which may in theory lead to remote execution of arbitrary code.

2.  Impact Information


Mozilla Firefox is the next-generation web browser from the Mozilla project.


Martijn Wargers and Nick Mott discovered a vulnerability when rendering malformed JavaScript content. The Mozilla Firefox 1.0 line is not affected.


If JavaScript is enabled, by tricking a user into visiting a malicious web page which would send a specially crafted HTML script that contains references to deleted objects with the "designMode" property enabled, an attacker can crash the web browser and in theory manage to execute arbitrary code with the rights of the user running the browser.

3.  Resolution Information


There is no known workaround at this time.


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-"

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-"

4.  References


Page updated May 06, 2006

Summary: This is a Gentoo Linux Security Advisory

Security Team
Contact Address

Donate to support our development efforts.

Copyright 2001-2015 Gentoo Foundation, Inc. Questions, Comments? Contact us.