November 28, 2014

Mozilla Fixes Critical Vulnerability in Firefox and Thunderbird

(LiveHacking.Com) – Mozilla has released new versions of Firefox and Thunderbird to fix a “use after free” crash which is potentially exploitable. According to the security advisory Mozilla developers Andrew McCreight and Olli Pettay found that the ReadPrototypeBindings code leaves a XBL binding in a hash table even when the function fails. If this occurs, when the cycle collector reads this hash table and attempts to do a virtual method on this binding a crash will occur. This crash may be potentially exploitable.

The Mozilla Foundation said Firefox 9 and earlier browser versions are not affected by this vulnerability.

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