Overview
Mozilla Firefox does not properly handle JavaScript onUnload events. This vulnerability may lead to memory corruption that could allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.
Description
The JavaScript onUnload event is executed when the browser exits a web page. An event handler can be installed via JavaScript to trap and process this event. Mozilla Firefox fails to properly handle JavaScript onUnload events. Specifically, Firefox may not correctly handle freed data structures modified in the onUnload event handler, which could cause memory corruption. |
Impact
By convincing a user to view a specially crafted HTML document (e.g., a web page or an HTML email message or attachment), an attacker may be able to execute arbitrary code with the privileges of the user. |
Solution
Upgrade |
Disable JavaScript
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Vendor Information
CVSS Metrics
| Group | Score | Vector |
|---|---|---|
| Base | ||
| Temporal | ||
| Environmental |
References
Acknowledgements
This vulnerability was publicly disclosed by Michal Zalewski.
This document was written by Jeff Gennari.
Other Information
| CVE IDs: | CVE-2007-1092 |
| Severity Metric: | 18.36 |
| Date Public: | 2007-02-22 |
| Date First Published: | 2007-02-23 |
| Date Last Updated: | 2007-03-07 15:35 UTC |
| Document Revision: | 30 |