Vulnerability Note VU#329500
Mozilla products vulnerable to memory corruption via large regular expression in JavaScript
Overview
A vulnerability in the way the JavaScript engine of Mozilla products and derivative programs handles a large regular expression could allow a remote attacker to crash the application or execute arbitrary code on a vulnerable system.
Description
A regular expression is a special text string for describing a search pattern. The JavaScript interpreter in the Mozilla browser and derived products includes the ability to process regular expressions. An integer overflow vulnerability has been discovered in the way that some versions of these products handle and overly large regular expression. According to Mozilla Foundation Security Advisory 2006-11: As part of the Firefox 1.5 release we fixed several crash bugs to improve the stability of the product. Some of these crashes showed evidence of memory corruption that we presume could be exploited to run arbitrary code and have been applied to the Firefox 1.0.x and Mozilla Suite 1.7.x releases |
Impact
Remote attackers may be able to crash a vulnerable program or run code of their choosing on an affected system. The attacker-supplied code would be executed with the permissions of the user running the vulnerable program. |
Solution
Upgrade
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Workarounds
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Systems Affected (Learn More)
Vendor | Status | Date Notified | Date Updated |
---|---|---|---|
Mozilla, Inc. | Affected | 17 Apr 2006 | 17 Apr 2006 |
Red Hat, Inc. | Affected | - | 17 Apr 2006 |
CVSS Metrics (Learn More)
Group | Score | Vector |
---|---|---|
Base | N/A | N/A |
Temporal | N/A | N/A |
Environmental | N/A | N/A |
References
Credit
Thanks to Mozilla Foundation Security Advisory for reporting this vulnerability. The Mozilla Foundation, in turn, credits Alden D'Souza for reporting the underlying bug to them.
This document was written by Chad Dougherty based on information supplied by the Mozilla Foundation.
Other Information
- CVE IDs: Unknown
- Date Public: 11 Apr 2006
- Date First Published: 17 Apr 2006
- Date Last Updated: 26 Apr 2006
- Severity Metric: 12.24
- Document Revision: 9
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