Junzhi Lu

**Name of the Vulnerable Software and Affected Versions** macOS versions prior to 11.4 Security Update versions prior to 2021-003 on Catalina Security Update versions prior to 2021-004 on Mojave iOS versions prior to 14.6 iPadOS versions prior to 14.6 **Description** A validation issue was addressed with improved logic. Processing a maliciously crafted image may lead to arbitrary code execution. **Recommendations** For macOS versions prior to 11.4, update to macOS Big Sur 11.4. For Security Update versions prior to 2021-003 on Catalina, apply Security Update 2021-003. For Security Update versions prior to 2021-004 on Mojave, apply Security Update 2021-004. For iOS versions prior to 14.6, update to iOS 14.6. For iPadOS versions prior to 14.6, update to iPadOS 14.6.

**Name of the Vulnerable Software and Affected Versions** macOS versions prior to 11.4 Security Update versions prior to 2021-003 Catalina Security Update versions prior to 2021-004 Mojave iOS versions prior to 14.6 iPadOS versions prior to 14.6 **Description** The issue is related to an out-of-bounds read that was addressed with improved input validation. Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution. **Recommendations** For macOS versions prior to 11.4, update to macOS Big Sur 11.4. For Security Update versions prior to 2021-003 Catalina, apply Security Update 2021-003 Catalina. For Security Update versions prior to 2021-004 Mojave, apply Security Update 2021-004 Mojave. For iOS versions prior to 14.6, update to iOS 14.6. For iPadOS versions prior to 14.6, update to iPadOS 14.6.

**Name of the Vulnerable Software and Affected Versions** macOS versions prior to 11.4 Security Update versions prior to 2021-003 on Catalina Security Update versions prior to 2021-004 on Mojave iOS versions prior to 14.6 iPadOS versions prior to 14.6 **Description** The issue is related to an out-of-bounds read that can be triggered by processing a maliciously crafted USD file, potentially disclosing memory contents. **Recommendations** For macOS versions prior to 11.4, update to macOS Big Sur 11.4. For Security Update versions prior to 2021-003 on Catalina, apply Security Update 2021-003. For Security Update versions prior to 2021-004 on Mojave, apply Security Update 2021-004. For iOS versions prior to 14.6, update to iOS 14.6. For iPadOS versions prior to 14.6, update to iPadOS 14.6.

Name of the Vulnerable Software and Affected Versions: macOS versions prior to 11.2 Security Update versions prior to 2021-001 Catalina Security Update versions prior to 2021-001 Mojave watchOS versions prior to 7.3 tvOS versions prior to 14.4 iOS versions prior to 14.4 iPadOS versions prior to 14.4 Description: An out-of-bounds read issue was addressed with improved bounds checking. Processing a maliciously crafted image may lead to arbitrary code execution. Recommendations: For macOS versions prior to 11.2, update to macOS Big Sur 11.2. For Security Update versions prior to 2021-001 Catalina, apply Security Update 2021-001 Catalina. For Security Update versions prior to 2021-001 Mojave, apply Security Update 2021-001 Mojave. For watchOS versions prior to 7.3, update to watchOS 7.3. For tvOS versions prior to 14.4, update to tvOS 14.4. For iOS versions prior to 14.4, update to iOS 14.4. For iPadOS versions prior to 14.4, update to iPadOS 14.4.

Name of the Vulnerable Software and Affected Versions: macOS versions prior to 11.2 Security Update versions prior to 2021-001 Catalina Security Update versions prior to 2021-001 Mojave iOS versions prior to 14.4 iPadOS versions prior to 14.4 Description: The issue is related to an out-of-bounds read that was addressed with improved input validation. Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution. Recommendations: For macOS versions prior to 11.2, update to macOS Big Sur 11.2. For Security Update versions prior to 2021-001 Catalina, apply Security Update 2021-001 Catalina. For Security Update versions prior to 2021-001 Mojave, apply Security Update 2021-001 Mojave. For iOS versions prior to 14.4, update to iOS 14.4. For iPadOS versions prior to 14.4, update to iPadOS 14.4.

Name of the Vulnerable Software and Affected Versions: macOS versions prior to 11.2 Security Update versions prior to 2021-001 Catalina Security Update versions prior to 2021-001 Mojave iOS versions prior to 14.4 iPadOS versions prior to 14.4 Description: A buffer overflow issue was addressed with improved bounds checking. Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution. Recommendations: For macOS versions prior to 11.2, update to macOS Big Sur 11.2. For Security Update versions prior to 2021-001 Catalina, apply Security Update 2021-001 Catalina. For Security Update versions prior to 2021-001 Mojave, apply Security Update 2021-001 Mojave. For iOS versions prior to 14.4, update to iOS 14.4. For iPadOS versions prior to 14.4, update to iPadOS 14.4.

Name of the Vulnerable Software and Affected Versions: macOS versions prior to 11.2 Security Update versions prior to 2021-001 Catalina Security Update versions prior to 2021-001 Mojave iOS versions prior to 14.4 iPadOS versions prior to 14.4 Description: Processing a maliciously crafted image may lead to heap corruption. This issue was addressed with improved checks. Recommendations: For macOS versions prior to 11.2, update to macOS Big Sur 11.2. For Security Update versions prior to 2021-001 Catalina, apply Security Update 2021-001 Catalina. For Security Update versions prior to 2021-001 Mojave, apply Security Update 2021-001 Mojave. For iOS versions prior to 14.4, update to iOS 14.4. For iPadOS versions prior to 14.4, update to iPadOS 14.4.

Name of the Vulnerable Software and Affected Versions: macOS versions prior to 11.2 Security Update versions prior to 2021-001 Catalina Security Update versions prior to 2021-001 Mojave iOS versions prior to 14.4 iPadOS versions prior to 14.4 Description: An out-of-bounds read issue was addressed with improved bounds checking. Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution. Recommendations: For macOS versions prior to 11.2, update to macOS Big Sur 11.2. For Security Update versions prior to 2021-001 Catalina, apply Security Update 2021-001 Catalina. For Security Update versions prior to 2021-001 Mojave, apply Security Update 2021-001 Mojave. For iOS versions prior to 14.4, update to iOS 14.4. For iPadOS versions prior to 14.4, update to iPadOS 14.4.

Name of the Vulnerable Software and Affected Versions: macOS versions prior to 11.2 Security Update versions prior to 2021-001 Catalina Security Update versions prior to 2021-001 Mojave watchOS versions prior to 7.3 tvOS versions prior to 14.4 iOS versions prior to 14.4 iPadOS versions prior to 14.4 Description: An out-of-bounds read issue existed, leading to the disclosure of kernel memory. This issue was addressed with improved input validation. A malicious application may be able to disclose kernel memory. Recommendations: For macOS versions prior to 11.2, update to macOS Big Sur 11.2. For Security Update versions prior to 2021-001 Catalina, apply Security Update 2021-001 Catalina. For Security Update versions prior to 2021-001 Mojave, apply Security Update 2021-001 Mojave. For watchOS versions prior to 7.3, update to watchOS 7.3. For tvOS versions prior to 14.4, update to tvOS 14.4. For iOS versions prior to 14.4, update to iOS 14.4. For iPadOS versions prior to 14.4, update to iPadOS 14.4.

Name of the Vulnerable Software and Affected Versions: macOS versions prior to 11.2 Security Update versions prior to 2021-001 Catalina Security Update versions prior to 2021-001 Mojave watchOS versions prior to 7.3 tvOS versions prior to 14.4 iOS versions prior to 14.4 iPadOS versions prior to 14.4 Description: The issue is related to an out-of-bounds read that was addressed with improved bounds checking. A remote attacker may be able to cause arbitrary code execution. Recommendations: For macOS versions prior to 11.2, update to macOS Big Sur 11.2. For Security Update versions prior to 2021-001 Catalina, apply Security Update 2021-001 Catalina. For Security Update versions prior to 2021-001 Mojave, apply Security Update 2021-001 Mojave. For watchOS versions prior to 7.3, update to watchOS 7.3. For tvOS versions prior to 14.4, update to tvOS 14.4. For iOS versions prior to 14.4, update to iOS 14.4. For iPadOS versions prior to 14.4, update to iPadOS 14.4.

**Name of the Vulnerable Software and Affected Versions** macOS Big Sur versions prior to 11.0.1 macOS Big Sur version 11.1 tvOS version 14.0 macOS Catalina versions prior to Security Update 2020-001 macOS Mojave versions prior to Security Update 2020-007 watchOS version 7.0 iOS version 14.0 iPadOS version 14.0 **Description** An out-of-bounds read issue was addressed with improved input validation. Processing a maliciously crafted font file may lead to arbitrary code execution. **Recommendations** For macOS Big Sur versions prior to 11.0.1, update to macOS Big Sur 11.0.1 or later. For macOS Big Sur version 11.1, no additional action is required as this version already includes the fix. For tvOS version 14.0, no additional action is required as this version already includes the fix. For macOS Catalina versions prior to Security Update 2020-001, apply Security Update 2020-001 or later. For macOS Mojave versions prior to Security Update 2020-007, apply Security Update 2020-007 or later. For watchOS version 7.0, no additional action is required as this version already includes the fix. For iOS version 14.0, no additional action is required as this version already includes the fix. For iPadOS version 14.0, no additional action is required as this version already includes the fix.

**Name of the Vulnerable Software and Affected Versions** macOS versions prior to 11.0.1 iTunes for Windows versions prior to 12.10.9 **Description** A memory corruption issue was addressed with improved state management. Processing a maliciously crafted text file may lead to arbitrary code execution. **Recommendations** For macOS versions prior to 11.0.1, update to macOS Big Sur 11.0.1 to resolve the issue. For iTunes for Windows versions prior to 12.10.9, update to iTunes for Windows 12.10.9 to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** macOS versions prior to 11.0.1 iOS versions prior to 14.0 iPadOS versions prior to 14.0 **Description** A use after free issue was addressed with improved memory management, which may allow a malicious application to elevate privileges. **Recommendations** For macOS versions prior to 11.0.1, update to macOS Big Sur 11.0.1. For iOS versions prior to 14.0, update to iOS 14.0. For iPadOS versions prior to 14.0, update to iPadOS 14.0.

**Name of the Vulnerable Software and Affected Versions** macOS versions prior to 11.1 macOS Big Sur version 11.0.1 Security Update 2020-001 Catalina Security Update 2020-007 Mojave **Description** An out-of-bounds write issue was addressed with improved input validation. Processing a maliciously crafted font file may lead to arbitrary code execution. **Recommendations** For macOS versions prior to 11.1, update to macOS Big Sur 11.1 or later. For macOS Big Sur version 11.0.1, update to macOS Big Sur 11.1 or later. For Security Update 2020-001 Catalina, apply Security Update 2020-001 or later. For Security Update 2020-007 Mojave, apply Security Update 2020-007 or later.

**Name of the Vulnerable Software and Affected Versions** iOS versions prior to 13.6 iPadOS versions prior to 13.6 macOS Catalina versions prior to 10.15.6 **Description** A sandboxed process may be able to circumvent sandbox restrictions. This issue was addressed with improved entitlements. **Recommendations** For iOS versions prior to 13.6, update to iOS 13.6 or later. For iPadOS versions prior to 13.6, update to iPadOS 13.6 or later. For macOS Catalina versions prior to 10.15.6, update to macOS Catalina 10.15.6 or later.

**Name of the Vulnerable Software and Affected Versions** macOS versions prior to 10.15.6 **Description** The issue involves an out-of-bounds read that can be addressed with improved input validation. A local user may be able to cause unexpected system termination or read kernel memory. **Recommendations** For versions prior to 10.15.6, update to macOS Catalina 10.15.6 to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** Tencent WeChat versions prior to 7.0.9 **Description** This issue allows remote attackers to redirect users to an external resource on affected installations. User interaction is required, as the target must be within a chat session with the attacker. The flaw exists within the parsing of a user's profile, specifically in the failure to properly validate a user's name, stored in the `name` variable. An attacker can leverage this, potentially in conjunction with other issues, to execute code in the context of the current process. **Recommendations** For versions prior to 7.0.9, update to version 7.0.9 or later to resolve the issue. As a temporary workaround, consider restricting user interactions within chat sessions to minimize the risk of exploitation.

**Name of the Vulnerable Software and Affected Versions** macOS versions prior to 10.14.4 **Description** The issue involves an out-of-bounds read that can be addressed with improved bounds checking. This allows an application to potentially read restricted memory, which could lead to information disclosure. **Recommendations** For versions prior to 10.14.4, update to macOS Mojave 10.14.4 to resolve the issue.

**Name of the Vulnerable Software and Affected Versions** Apple iOS versions prior to 12.1.1 Apple macOS versions prior to 10.14.2 Apple tvOS versions prior to 12.1.1 Apple watchOS versions prior to 5.1.2 **Description** A logic issue was addressed with improved restrictions. **Recommendations** For Apple iOS versions prior to 12.1.1, update to iOS 12.1.1 or later. For Apple macOS versions prior to 10.14.2, update to macOS 10.14.2 or later. For Apple tvOS versions prior to 12.1.1, update to tvOS 12.1.1 or later. For Apple watchOS versions prior to 5.1.2, update to watchOS 5.1.2 or later.