An issue was discovered in certain Apple products. iOS before 10.2.1 is affected. macOS before 10.12.3 is affected. tvOS before 10.1.1 is affected. watchOS before 3.1.3 is affected. The issue involves the "Kernel" component. It allows attackers to execute arbitrary code in a privileged context or cause a denial of service (use-after-free) via a crafted app.
https://www.exploit-db.com/exploits/41165/
https://support.apple.com/HT207487
https://support.apple.com/HT207485
https://support.apple.com/HT207483
https://support.apple.com/HT207482
http://www.securitytracker.com/id/1037668