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Chrome Blink SpeechRecognitionController Use-After-Free Exploit

Description

A specially crafted web-page can cause the blink rendering engine used by Google Chrome and Chromium to continue to use a speech recognition API object after the memory block that contained the object has been freed. An attacker can force the code to read a pointer from the freed memory and use this to call a function, allowing arbitrary code execution. Google Chrome version 39.0 is affected.


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