WebKit, as used in Apple Safari before 6.2.4, 7.x before 7.1.4, and 8.x before 8.0.4, 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 CVEs listed in APPLE-SA-2015-03-17-1.
https://support.apple.com/kb/HT204949
https://support.apple.com/HT204560
http://www.securitytracker.com/id/1031936
http://lists.apple.com/archives/security-announce/2015/Mar/msg00004.html
http://lists.apple.com/archives/security-announce/2015/Jun/msg00006.html