Mozilla Foundation Security Advisory 2009-24
Title: Crashes with evidence of memory corruption (rv:18.104.22.168)
Announced: June 11, 2009
Reporter: Mozilla developers and community
Products: Firefox, Thunderbird, SeaMonkey
Fixed in: Firefox 3.0.11
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.
Bob Clary, Jesse Ruderman, Alexander Sack, Bret McMillan, Tomeo Vizoso, Matt McCutchen, and Martijn Wargers reported crashes in the Firefox 3 browser engine. Boris Zbarsky also reported a method to trigger double frame construction which could lead to memory corruption.