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Mozilla Firefox JavaScript engine fails to properly handle garbage collection

Vulnerability Note VU#441529

Original Release Date: 2008-04-18 | Last Revised: 2008-04-18

Overview

Mozilla Firefox JavaScript engine fails to properly handle garbage collection. This vulnerability result in memory corruption, which in some cases may be exploitable to execute arbitrary code.

Description

Per Mozilla Foundation Security Advisory 2008-20:

Fixes for security problems in the JavaScript engine described in MFSA 2008-15 (CVE-2008-1237) introduced a stability problem, where some users experienced crashes during JavaScript garbage collection. This is being fixed primarily to address stability concerns. We have no demonstration that this particular crash is exploitable but are issuing this advisory because some crashes of this type have been shown to be exploitable in the past.

Impact

A remote, unauthenticated attacker may be able to cause a vulnerable version of the Firefox browser to crash.

Solution

Upgrade

Users are encouraged to update to Firefox 2.0.0.14, Thunderbird 2.0.0.14, or SeaMonkey 1.1.10.


Use NoScript
Using the Mozilla Firefox NoScript extension to whitelist web sites that can run scripts and access installed plugins will mitigate this vulnerability. See the NoScript FAQ for more information.

Vendor Information

441529
 
Affected   Unknown   Unaffected

Mozilla

Updated:  April 18, 2008

Status

  Vulnerable

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

See http://www.mozilla.org/security/announce/2008/mfsa2008-20.html for more details.

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


CVSS Metrics

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

References

Acknowledgements

This document was written by Ryan Giobbi.

Other Information

CVE IDs: CVE-2008-1380
Date Public: 2008-04-16
Date First Published: 2008-04-18
Date Last Updated: 2008-04-18 18:24 UTC
Document Revision: 4

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