CVE-2011-3076
Use-after-free vulnerability in Google Chrome before 18.0.1025.151 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to focus handling.
Date published : 2012-04-05
http://lists.apple.com/archives/security-announce/2012/Jul/msg00000.html
http://lists.apple.com/archives/security-announce/2012/Sep/msg00001.html