An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in tvOS 15.2, macOS Monterey 12.1, Safari 15.2, iOS 15.2 and iPadOS 15.2, watchOS 8.3. Processing maliciously crafted web content may lead to arbitrary code execution.
https://www.debian.org/security/2022/dsa-5061
https://www.debian.org/security/2022/dsa-5060
https://support.apple.com/en-us/HT212982
https://support.apple.com/en-us/HT212980
https://support.apple.com/en-us/HT212978
https://support.apple.com/en-us/HT212976