CVE:CVE-2014-4459
CNNVD:CNNVD-201411-312
WebKit是KDE、苹果（Apple）、谷歌（Google）等公司共同开发的一套开源Web浏览器引擎，目前被Apple Safari及Google Chrome等浏览器使用。
Apple OS X 10.10.0及之前版本中使用的WebKit中存在释放后重用漏洞。远程攻击者可借助HTML文档中特制的页面对象利用该漏洞执行任意代码。
solution:Upgrade apple safari to a higher version than 6.2.1,7.1.1,8.0.1,and avoid the version [6.0,6.2.1),[7.0,7.1.1),[8.0,8.0.1); Upgrade apple mac_os_x to a higher version than 10.10.1,and avoid the version (,10.10.1); Upgrade apple iphone_os to a higher version than 8.1.3,and avoid the version (,8.1.3); Upgrade apple itunes to a higher version than 12.2,and avoid the version (,12.2); Upgrade apple tvos to a higher version than 7.0.3,and avoid the version (,7.0.3)