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HistoryAug 07, 2009 - 12:00 a.m.

Mozilla Foundation Security Advisory 2009-45

2009-08-0700:00:00
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Mozilla Foundation Security Advisory 2009-45

Title: Crashes with evidence of memory corruption (rv:1.9.1.2/1.9.0.13)
Impact: Critical
Announced: August 3, 2009
Reporter: Mozilla developers and community
Products: Firefox

Fixed in: Firefox 3.5.2
Firefox 3.0.13
Description

Mozilla developers and community members identified and fixed several stability bugs in the browser engine used in Firefox and other Mozilla-based products. Some of these crashes showed evidence of memory corruption under certain circumstances and we presume that with enough effort at least some of these could be exploited to run arbitrary code.
Workaround

Disable JavaScript until a version containing these fixes can be installed.
References

Lucas Adamski, Bob Clary, and Tobias Markus reported crashes in the Firefox 3.5 browser engine. Bob Clary also reported a memory saftey issue in the JavaScript engine which affected Firefox 3.

* Browser crashes - Firefox 3.5
* JavaScript engine memory safety bug - Firefox 3