A null pointer dereference was addressed with improved validation. This issue is fixed in tvOS 15.4, iOS 15.4 and iPadOS 15.4, macOS Big Sur 11.6.5, Security Update 2022-003 Catalina, watchOS 8.5, macOS Monterey 12.3. An attacker in a privileged position may be able to perform a denial of service attack.
Published March 18, 2022.