iPhone OS < 12.1.3 - Memory Corruption via Improved Validation
A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 12.1.3, macOS Mojave 10.14.3, tvOS 12.1.2. A malicious application may be able to elevate privileges.
A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Catalina 10.15. An application may be able to execute arbitrary code with kernel privileges.