CVE-2021-30873: About the security content of macOS Monterey 12.0.1

An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1. A malicious application may be able to read restricted memory.

This issue was addressed with improved checks. This issue is fixed in macOS Monterey 12.0.1. A person with access to a host Mac may be able to bypass the Login Window in Remote Desktop for a locked instance of macOS.

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.6. A local user may be able to read kernel memory.

This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.3, watchOS 7.4. Processing a maliciously crafted image may lead to arbitrary code execution.

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.4. A local user may be able to load unsigned kernel extensions.

An out-of-bounds write was addressed with improved input validation. This issue is fixed in iOS 14.7, macOS Big Sur 11.5. Processing a maliciously crafted image may lead to arbitrary code execution.

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 14.7, macOS Big Sur 11.5. Processing a maliciously crafted file may disclose user information.

A race condition was addressed with improved state handling. This issue is fixed in iOS 14.7, macOS Big Sur 11.5. Opening a maliciously crafted PDF file may lead to an unexpected application termination or arbitrary code execution.

A logic issue was addressed with improved state management. This issue is fixed in macOS Monterey 12.0.1. A sandboxed process may be able to circumvent sandbox restrictions.

A permissions issue was addressed with improved validation. This issue is fixed in macOS Monterey 12.0.1. A local attacker may be able to read sensitive information.

A logic issue was addressed with improved state management. This issue is fixed in macOS Monterey 12.0.1. A malicious application may bypass Gatekeeper checks.

A race condition was addressed with improved locking. This issue is fixed in macOS Monterey 12.0.1, macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.

The issue was addressed with improved permissions logic. This issue is fixed in macOS Monterey 12.0.1, macOS Big Sur 11.6.1. An unprivileged application may be able to edit NVRAM variables.

The issue was addressed with improved permissions logic. This issue is fixed in macOS Monterey 12.0.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious application may gain access to a user's Keychain items.