An issue was discovered in certain Apple products. iOS before 10.2 is affected. Safari before 10.0.2 is affected. iCloud before 6.1 is affected. iTunes before 12.5.4 is affected. watchOS before 3.1.3 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.
https://support.apple.com/HT207487
https://support.apple.com/HT207427
https://support.apple.com/HT207424
https://support.apple.com/HT207422
https://support.apple.com/HT207421
https://security.gentoo.org/glsa/201706-15