The issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.6, iOS 15.7 and iPadOS 15.7, iOS 16, macOS Big Sur 11.7. An app may be able to execute arbitrary code with kernel privileges.
https://support.apple.com/en-us/HT213486
https://support.apple.com/en-us/HT213443
https://support.apple.com/kb/HT213488
https://support.apple.com/kb/HT213487
https://support.apple.com/kb/HT213486
https://support.apple.com/en-us/HT213446
https://support.apple.com/en-us/HT213445
https://support.apple.com/en-us/HT213444
http://seclists.org/fulldisclosure/2022/Oct/41