An issue was discovered in certain Apple products. iOS before 10.2 is affected. Safari before 10.0.2 is affected. The issue involves the "WebKit" component. It allows remote attackers to obtain sensitive information via a blob URL on a web site.
https://support.apple.com/HT207422
https://support.apple.com/HT207421
https://security.gentoo.org/glsa/201706-15