Analytics data was sent using HTTP rather than HTTPS. This was addressed by sending analytics data using HTTPS. This issue affected versions prior to Apple Support 2.4 for iOS.

A validation issue was addressed with improved input sanitization. This issue affected versions prior to macOS Mojave 10.14.

This issue was addressed with improved checks. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.

A memory corruption issue was addressed with improved input validation. This issue affected versions prior to iOS 12.1, macOS Mojave 10.14.1, tvOS 12.1, watchOS 5.1, iTunes 12.9.1.

A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to macOS Mojave 10.14.

Multiple memory corruption issues were addressed with improved memory handling. This issue affected versions prior to iOS 12.1, tvOS 12.1, watchOS 5.1, Safari 12.0.1, iTunes 12.9.1, iCloud for Windows 7.8.