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Vulnerability Note VU#428500

Mozilla LiveConnect vulnerable to crash finalizing JS objects

Overview

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

I. 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.

II. Impact

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

III. 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

VendorStatusDate NotifiedDate Updated
Debian GNU/LinuxVulnerable5-Apr-2007
Fedora ProjectVulnerable18-Jan-2007
Gentoo LinuxVulnerable18-Jan-2007
Mandriva, Inc.Vulnerable18-Jan-2007
MozillaVulnerable21-Dec-2006
Red Hat, Inc.Vulnerable18-Jan-2007
rPathVulnerable18-Jan-2007
Slackware Linux Inc.Vulnerable18-Jan-2007
SUSE LinuxVulnerable18-Jan-2007
UbuntuVulnerable18-Jan-2007

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

Date Public:2006-12-19
Date First Published:2007-01-18
Date Last Updated:2007-04-05
CERT Advisory: 
CVE-ID(s):CVE-2006-6502
NVD-ID(s):CVE-2006-6502
US-CERT Technical Alerts: 
Metric:3.64
Document Revision:25

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