Vulnerability Note VU#428500

Overview

A vulnerability exists in the Mozilla LiveConnect that may allow a remote attacker to cause a denial of service.

Description

Mozilla LiveConnect, which allows communication between Java applets and web JavaScript, contains a vulnerability in the way freed objects are re-used that may result in a denial of service. According to the Mozilla Foundation Security Advisory 2006-71: The crash is due to re-use of an already-freed object and we presume this could be exploited with enough effort.

Impact

A remote, unathenticated attacker may be able to cause a denial of service.

Solution

Apply an update According to the Mozilla Foundation Security Advisory 2006-71, this vulnerability is addressed in Firefox 2.0.0.1, Firefox 1.5.0.9, Thunderbird 1.5.0.9, and SeaMonkey 1.0.7.

Disable Java For instructions on how to disable Java in Firefox, please refer to the Firefox section of the Securing Your Web Browser document.

Systems Affected (Learn More)

Vendor	Status	Date Notified	Date Updated
Debian GNU/Linux	Affected	-	05 Apr 2007
Fedora Project	Affected	-	18 Jan 2007
Gentoo Linux	Affected	-	18 Jan 2007
Mandriva, Inc.	Affected	-	18 Jan 2007
Mozilla	Affected	-	21 Dec 2006
Red Hat, Inc.	Affected	-	18 Jan 2007
rPath	Affected	-	18 Jan 2007
Slackware Linux Inc.	Affected	-	18 Jan 2007
SUSE Linux	Affected	-	18 Jan 2007
Ubuntu	Affected	-	18 Jan 2007

If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group	Score	Vector
Base	N/A	N/A
Temporal	N/A	N/A
Environmental	N/A	N/A

References

• http://www.mozilla.org/security/announce/2006/mfsa2006-71.html
• http://secunia.com/advisories/23591/
• http://secunia.com/advisories/23598/
• http://secunia.com/advisories/23439/
• http://secunia.com/advisories/23514/
• http://secunia.com/advisories/23545/
• http://secunia.com/advisories/23601/
• http://secunia.com/advisories/23614/
• http://secunia.com/advisories/23618/
• http://secunia.com/advisories/23692/
• http://www.securityfocus.com/bid/21668
• http://secunia.com/advisories/23988/
• http://www.auscert.org.au/7372
• http://secunia.com/advisories/24390/

Credit

This vulnerability was reported in Mozilla Foundation Security Advisory 2006-71. Mozilla credits Steven Michaud with providing information about this issue.

This document was written by Chris Taschner.

Other Information

• CVE IDs: CVE-2006-6502
• Date Public: 19 Dec 2006
• Date First Published: 18 Jan 2007
• Date Last Updated: 05 Apr 2007
• Severity Metric: 3.64
• Document Revision: 25