Get the Whitepaper called Dangling Pointer – Smashing the Pointer for Fun and Profit.
You can download it from the following link: https://packetstormsecurity.com/files/download/101208/dangling-pointer.pdf
Source: https://packetstormsecurity.com/files/101208/Dangling-Pointer-Smashing-The-Pointer-For-Fun-And-Profit.html