A memory corruption issue was addressed with improved input validation. This issue affected versions prior to iOS 12.1.

An out-of-bounds read was addressed with improved bounds checking. This issue affected versions prior to iOS 12.1.

An input validation issue existed in the kernel. This issue was addressed with improved input validation. This issue affected versions prior to iOS 12, tvOS 12, watchOS 5.

An inconsistent user interface issue was addressed with improved state management. This issue affected versions prior to Safari 11.1.2, iOS 12.

Multiple memory corruption issues were addressed with improved memory handling. This issue affected versions prior to iOS 12, tvOS 12, Safari 12, iTunes 12.9 for Windows, iCloud for Windows 7.7.