A memory corruption issue was addressed with improved input validation This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.Referenceshttps://support.apple.com/kb/HT209107https://support.apple.com/kb/HT209193https://support.apple.com/kb/HT209106https://support.apple.com/kb/HT209139https://support.apple.com/kb/HT209108
