Windows Vista includes a new memory protection system called ASLR. Its goal is to escape buffer overflow attacks in vulnerable programs. Ali Rahbar, has made a complete study of this security mechanism, and found a new implementation flaw that allows to bypass this protection.
You can download it from the following link: https://packetstormsecurity.com/files/download/50579/Analysis-of-Microsoft-Windows-Vistas-ASLR.pdf
Source: https://packetstormsecurity.com/files/50579/Analysis-of-Microsoft-Windows-Vistas-ASLR.pdf.html