CVE-2014-4459

Use-after-free vulnerability in WebKit, as used in Apple OS X before 10.10.1, allows remote attackers to execute arbitrary code via crafted page objects in an HTML document.

CVE-2014-4452

WebKit, as used in Apple iOS before 8.1.1 and Apple TV 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-2014-4462.