An issue was discovered in certain Apple products. iOS before 10.3.3 is affected. Safari before 10.1.2 is affected. iCloud before 6.2.2 on Windows is affected. iTunes before 12.6.2 on Windows is affected. The issue involves the "WebKit" component. It allows attackers to bypass intended memory-read restrictions via a crafted app.
https://www.exploit-db.com/exploits/42375/
https://support.apple.com/HT207928
https://support.apple.com/HT207927
https://support.apple.com/HT207923
https://support.apple.com/HT207921