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Mozilla Foundation Security Advisory 2012-08

Title: Crash with malformed embedded XSLT stylesheets
Impact: Critical
Announced: January 31, 2012
Reporter: Nicolas Grégoire, Aki Helin
Products: Firefox, Thunderbird, SeaMonkey

Fixed in: Firefox 10.0
  Firefox 3.6.26
  Thunderbird 10.0
  Thunderbird 3.1.18
  SeaMonkey 2.7


Security researchers Nicolas Grégoire and Aki Helin independently reported that when processing a malformed embedded XSLT stylesheet, Firefox can crash due to a memory corruption. While there is no evidence that this is directly exploitable, there is a possibility of remote code execution.