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.
lists.apple.com/archives/security-announce/2012/Jun/msg00000.html
lists.apple.com/archives/security-announce/2012/May/msg00000.html
lists.apple.com/archives/security-announce/2012/May/msg00002.html
secunia.com/advisories/47292
support.apple.com/kb/HT5282
www.securityfocus.com/bid/53404
exchange.xforce.ibmcloud.com/vulnerabilities/75431