Thomas Tempelmann

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 allows a local user to potentially read arbitrary files due to inadequate permissions logic. 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** Mac OS X versions 10.5 through 10.5.4 **Description** The issue is related to the kernel in Mac OS X, which does not properly flush cached credentials during the recycling of a vnode. This might allow local users to bypass the intended read or write permissions of a file. **Recommendations** For Mac OS X versions 10.5 through 10.5.4, update to a version later than 10.5.4 to resolve the issue.