A logic issue was addressed with improved state management. This issue is fixed in Security Update 2021-005 Catalina, macOS Big Sur 11.6. A remote attacker may be able to leak memory.

This issue was addressed with improved checks. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, Security Update 2021-005 Catalina, tvOS 15, iOS 15 and iPadOS 15, watchOS 8. Processing a maliciously crafted dfont file may lead to arbitrary code execution.

A memory corruption issue was addressed with improved memory handling. This issue is fixed in Security Update 2021-005 Catalina, macOS Big Sur 11.6. A malicious application may be able to execute arbitrary code with kernel privileges.

A permissions issue existed. This issue was addressed with improved permission validation. This issue is fixed in Security Update 2021-005 Catalina, macOS Big Sur 11.6. A local attacker may be able to elevate their privileges.

A memory corruption issue was addressed with improved state management. This issue is fixed in Security Update 2021-005 Catalina, macOS Big Sur 11.6. A local attacker may be able to elevate their privileges.

This issue was addressed with improved checks. This issue is fixed in Security Update 2021-005 Catalina, iTunes 12.12 for Windows, tvOS 15, iOS 15 and iPadOS 15, watchOS 8. Processing a maliciously crafted image may lead to arbitrary code execution.

This issue was addressed with improved environment sanitization. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave, macOS Big Sur 11.4, watchOS 7.5. A malicious application may be able to break out of its sandbox.

A logic issue was addressed with improved state management. This issue is fixed in tvOS 14.6, Security Update 2021-004 Mojave, iOS 14.6 and iPadOS 14.6, Security Update 2021-003 Catalina, macOS Big Sur 11.4, watchOS 7.5. An application may be able to execute arbitrary code with kernel privileges.

An out-of-bounds write was addressed with improved input validation. This issue is fixed in iOS 14.4 and iPadOS 14.4, macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave. Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution.

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. A malicious application may bypass Gatekeeper checks.