CVE-2012-0672
WebKit in Apple iOS before 5.1.1 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.
Date published : 2012-05-08
http://lists.apple.com/archives/security-announce/2012/May/msg00000.html
http://lists.apple.com/archives/security-announce/2012/May/msg00002.html