WebKit in Apple iOS before 9.3.3, Safari before 9.1.2, and tvOS before 9.2.2 allows remote attackers to bypass the Same Origin Policy and obtain image date from an unintended web site via a timing attack involving an SVG document.
http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html
http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.html
http://lists.apple.com/archives/security-announce/2016/Jul/msg00004.html
http://packetstormsecurity.com/files/138502/WebKitGTK-SOP-Bypass-Information-Disclosure.html
https://support.apple.com/HT206900
https://support.apple.com/HT206902