Vulnerability Note VU#670060

Mozilla fails to properly release JavaScript references

Overview

Mozilla products fail to properly release memory. This vulnerability may allow a remote attacker to execute arbitrary code on a vulnerable system.

I. Description

Mozilla products fail to properly release JavaScript references. This may corrupt memory in a way that can allow an attacker to execute arbitrary code.

For complete list of affected products refer to Mozilla Foundation Security Advisory 2006-44.

II. Impact

A remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system. The attacker could also cause the vulnerable application to crash.

III. Solution

Upgrade

This vulnerability has been addressed in Firefox 1.5.0.5 and SeaMonkey 1.0.3 according to the Mozilla Foundation Security Update 2006-44.

Until it is possible to upgrade to a fixed version of Firefox or SeaMonkey, the following workaround will prevent exploitation:

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

Vendor	Status	Date Updated
Mozilla, Inc.	Vulnerable	27-Jul-2006

References

http://www.mozilla.org/security/announce/2006/mfsa2006-44.html
https://bugzilla.mozilla.org/show_bug.cgi?id=342267
http://secunia.com/advisories/19873/
http://secunia.com/advisories/21216/
http://www.zerodayinitiative.com/advisories/ZDI-06-025.html
http://www.securityfocus.com/bid/19181

Credit

This vulnerability was reported in Mozilla Foundation Security Advisory 2006-44. Mozilla credits Thilo Girmann with reporting this vulnerability.

This document was written by Jeff Gennari based on information from Mozilla.

Other Information

Date Public	07/25/2006
Date First Published	07/27/2006 10:57:51 AM
Date Last Updated	02/09/2007
CERT Advisory
CVE Name	CVE-2006-3677
Metric	58.14
Document Revision	26

If you have feedback, comments, or additional information about this vulnerability, please send us email.