An issue was discovered in certain Apple products. iOS before 10.3.3 is affected. macOS before 10.12.6 is affected. tvOS before 10.2.2 is affected. watchOS before 3.2.3 is affected. The issue involves the "Kernel" component. It allows attackers to bypass intended memory-read restrictions via a crafted app.
https://support.apple.com/HT207925
https://support.apple.com/HT207924
https://support.apple.com/HT207923
https://support.apple.com/HT207922