The generate-id XPath function in libxslt in Apple iOS 4.3.x before 4.3.2 allows remote attackers to obtain potentially sensitive information about heap memory addresses via a crafted web site. NOTE: this may overlap CVE-2011-1202.
http://www.securitytracker.com/id?1025365
http://support.apple.com/kb/HT4808
http://support.apple.com/kb/HT4723
http://lists.apple.com/archives/security-announce/2011//Jun/msg00000.html
http://lists.apple.com/archives/security-announce/2011//Jul/msg00002.html
http://lists.apple.com/archives/security-announce/2011//Apr/msg00000.html