This Metasploit module exploits a vulnerability found on Firefox 17.0 (< 17.0.2), specifically an use after free of an Element object, when using the serializeToStream method with a specially crafted OutputStream defining its own write function. This Metasploit module has been tested successfully with Firefox 17.0.1 ESR, 17.0.1 and 17.0 on Windows XP SP3.
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