The issue was addressed with improved memory handling. This issue is fixed in tvOS 17, Safari 17, watchOS 10, iOS 17 and iPadOS 17, macOS Sonoma 14. Processing web content may lead to arbitrary code execution.
https://support.apple.com/en-us/HT213941
https://support.apple.com/en-us/HT213940
https://support.apple.com/en-us/HT213938
https://support.apple.com/en-us/HT213937
https://support.apple.com/en-us/HT213936
https://security.gentoo.org/glsa/202401-33
http://www.openwall.com/lists/oss-security/2023/09/28/3
http://seclists.org/fulldisclosure/2023/Oct/9
http://seclists.org/fulldisclosure/2023/Oct/8
http://seclists.org/fulldisclosure/2023/Oct/3