WebKit, as used in Apple iOS before 9.3.2, Safari before 9.1.1, and tvOS before 9.2.1, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, a different vulnerability than CVE-2016-1855, CVE-2016-1856, and CVE-2016-1857.
lists.apple.com/archives/security-announce/2016/May/msg00001.html
lists.apple.com/archives/security-announce/2016/May/msg00002.html
lists.apple.com/archives/security-announce/2016/May/msg00005.html
packetstormsecurity.com/files/137229/WebKitGTK-Code-Execution-Denial-Of-Service-Memory-Corruption.html
www.securityfocus.com/archive/1/538522/100/0/threaded
www.securitytracker.com/id/1035888
www.zerodayinitiative.com/advisories/ZDI-16-341
support.apple.com/HT206564
support.apple.com/HT206565
support.apple.com/HT206568