In macOS High Sierra before 10.13.5, a buffer overflow was addressed with improved size validation.

In macOS High Sierra before 10.13.5, an out-of-bounds read was addressed with improved input validation.

In macOS High Sierra before 10.13.5, an out-of-bounds read was addressed with improved input validation.

In macOS High Sierra before 10.13.5, an input validation issue existed in the kernel. This issue was addressed with improved input validation.

An issue was discovered in certain Apple products. macOS before 10.13.5 is affected. The issue involves the “AMD” component. It allows local users to bypass intended memory-read restrictions or cause a denial of service (out-of-bounds read of kernel memory) via a crafted app.

An issue was discovered in certain Apple products. iOS before 11.4 is affected. The issue involves the “Siri” component. It allows physically proximate attackers to bypass the lock-screen protection mechanism and obtain private notification content via Siri.