WebKit, as used in Apple iOS before 8.3, Apple TV before 7.2, and Apple Safari before 6.2.5, 7.x before 7.1.5, and 8.x before 8.0.5, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site, a different vulnerability than other WebKit CVEs listed in APPLE-SA-2015-04-08-1, APPLE-SA-2015-04-08-3, and APPLE-SA-2015-04-08-4.
lists.apple.com/archives/security-announce/2015/Apr/msg00000.html
lists.apple.com/archives/security-announce/2015/Apr/msg00002.html
lists.apple.com/archives/security-announce/2015/Apr/msg00003.html
lists.apple.com/archives/security-announce/2015/Jun/msg00006.html
www.securityfocus.com/bid/73972
www.securitytracker.com/id/1032047
support.apple.com/HT204658
support.apple.com/HT204661
support.apple.com/HT204662
support.apple.com/kb/HT204949