An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 18.4 and iPadOS 18.4, iPadOS 17.7.7, macOS Sequoia 15.4, macOS Sonoma 14.7.6, macOS Ventura 13.7.6, tvOS 18.4, visionOS 2.4, watchOS 11.4. Processing a maliciously crafted file may lead to a denial-of-service or potentially disclose memory contents.
https://support.apple.com/en-us/122718
https://support.apple.com/en-us/122717
https://support.apple.com/en-us/122405
https://support.apple.com/en-us/122378
https://support.apple.com/en-us/122377
https://support.apple.com/en-us/122376
https://support.apple.com/en-us/122373
https://support.apple.com/en-us/122371