WebKit, as used in Apple Safari before 6.1.2 and 7.x before 7.0.2, 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 CVE-2014-1268 and CVE-2014-1269.
https://support.apple.com/kb/HT6537
http://support.apple.com/kb/HT6163