Vulnerability Note VU#447772

Mozilla JavaScript Engine multiple memory corruption vulnerabilities

Original Release date: 18 Jan 2007 | Last revised: 05 Apr 2007


Several vulnerabilities exists in the Mozilla JavaScript Engine that may allow a remote attacker to compromise a vulnerable system.


The Mozilla JavaScript Engine contains multiple vulnerabilities that may result in memory corruption. According to the Mozilla Foundation Security Advisory 2006-68:

Some of these were crashes that showed evidence of memory corruption and we presume that at least some of these could be exploited to run arbitrary code with enough effort.


A remote, unauthenticated attacker may be able to cause an affected application to crash, thereby causing a denial of service. The Mozilla foundation indicates that some of these underlying vulnerabilities may allow an attacker to execute arbitrary code, however the potential for this impact is unclear and has not been confirmed.


Apply an update

According to the Mozilla Foundation Security Advisory 2006-68, this vulnerability is addressed in Firefox, Firefox, Thunderbird, and SeaMonkey 1.0.7.

Disable JavaScript

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

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Debian GNU/LinuxAffected-05 Apr 2007
Fedora ProjectAffected-18 Jan 2007
Gentoo LinuxAffected-18 Jan 2007
Mandriva, Inc.Affected-18 Jan 2007
MozillaAffected-21 Dec 2006
Red Hat, Inc.Affected-18 Jan 2007
rPathAffected-18 Jan 2007
Slackware Linux Inc.Affected-18 Jan 2007
SUSE LinuxAffected-18 Jan 2007
UbuntuAffected-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



This issue is address in Mozilla Foundation Security Advisory 2006-68 . Mozilla credits Igor Bukanov, Jesse Ruderman and moz_bug_r_a4 with providing information about this issue.

This document was written by Chris Taschner.

Other Information

  • CVE IDs: CVE-2006-6498
  • Date Public: 19 Dec 2006
  • Date First Published: 18 Jan 2007
  • Date Last Updated: 05 Apr 2007
  • Severity Metric: 3.64
  • Document Revision: 30


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