An issue was discovered in certain Apple products. iOS before 10.1 is affected. Safari before 10.0.1 is affected. iCloud before 6.0.1 is affected. iTunes before 12.5.2 is affected. tvOS before 10.0.1 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/HT207274
https://support.apple.com/HT207273
https://support.apple.com/HT207272
https://support.apple.com/HT207271
https://support.apple.com/HT207270