CVE-2013-2556
Unspecified vulnerability in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, and Windows 7 through SP1 allows attackers to bypass the ASLR protection mechanism via unknown vectors, as demonstrated against Adobe Flash Player by VUPEN during a Pwn2Own competition at CanSecWest 2013, aka "ASLR Security Feature Bypass Vulnerability."
Date published : 2013-03-11
http://www.us-cert.gov/ncas/alerts/TA13-225A
http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/Pwn2Own-2013/ba-p/5981157