An issue was discovered in certain Apple products. iOS before 11.2.5 is affected. macOS before 10.13.3 is affected. Safari before 11.0.3 is affected. tvOS before 11.2.5 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://www.exploit-db.com/exploits/43937/
https://support.apple.com/HT208475
https://support.apple.com/HT208465
https://support.apple.com/HT208463
https://support.apple.com/HT208462
http://www.securitytracker.com/id/1040267
http://www.securitytracker.com/id/1040266