Robert Ai

**Name of the Vulnerable Software and Affected Versions** macOS versions prior to 12.4 macOS Big Sur versions prior to 11.6.6 macOS Catalina versions prior to Security Update 2022-004 **Description** An out-of-bounds read issue was addressed with improved input validation. Processing a maliciously crafted AppleScript binary may result in unexpected application termination or disclosure of process memory. **Recommendations** For macOS versions prior to 12.4, update to macOS Monterey 12.4 or later. For macOS Big Sur versions prior to 11.6.6, update to macOS Big Sur 11.6.6 or later. For macOS Catalina versions prior to Security Update 2022-004, apply Security Update 2022-004.

**Name of the Vulnerable Software and Affected Versions** macOS versions prior to 11.6.5 macOS Monterey versions prior to 12.3 **Description** A memory corruption issue was addressed with improved validation. Processing a maliciously crafted file may lead to arbitrary code execution. **Recommendations** For macOS versions prior to 11.6.5, update to macOS Big Sur 11.6.5 or later. For macOS Monterey versions prior to 12.3, update to macOS Monterey 12.3 or later. For macOS Catalina, apply Security Update 2022-003 Catalina.

**Name of the Vulnerable Software and Affected Versions** macOS versions prior to 11.6.5 macOS Monterey versions prior to 12.3 macOS Catalina versions without Security Update 2022-003 **Description** An out-of-bounds read issue was addressed with improved input validation. Processing a maliciously crafted AppleScript binary may result in unexpected application termination or disclosure of process memory. **Recommendations** For macOS versions prior to 11.6.5, update to macOS Big Sur 11.6.5. For macOS Monterey versions prior to 12.3, update to macOS Monterey 12.3. For macOS Catalina, apply Security Update 2022-003.

**Name of the Vulnerable Software and Affected Versions** macOS versions prior to 11.6.5 macOS Monterey versions prior to 12.3 macOS Catalina versions prior to Security Update 2022-003 **Description** An out-of-bounds read issue was addressed with improved bounds checking. Processing a maliciously crafted AppleScript binary may result in unexpected application termination or disclosure of process memory. **Recommendations** For macOS versions prior to 11.6.5, update to macOS Big Sur 11.6.5. For macOS Monterey versions prior to 12.3, update to macOS Monterey 12.3. For macOS Catalina versions prior to Security Update 2022-003, apply Security Update 2022-003 Catalina.