Ret2Systems

**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 **Description** A malicious application may be able to execute arbitrary code with kernel privileges due to an out-of-bounds write issue. This issue was addressed with improved bounds checking. **Recommendations** For macOS versions prior to 11.4, update to macOS Big Sur 11.4 or later. For Security Update versions prior to 2021-003 Catalina, apply Security Update 2021-003 Catalina or later. For Security Update versions prior to 2021-004 Mojave, apply Security Update 2021-004 Mojave or later.

**Name of the Vulnerable Software and Affected Versions** Safari versions prior to 14.1.1 tvOS versions prior to 14.6 iOS versions prior to 14.6 iPadOS versions prior to 14.6 macOS Big Sur versions prior to 11.4 watchOS versions prior to 7.5 **Description** The issue is related to multiple memory corruption problems that have been addressed with improved memory handling. Processing maliciously crafted web content may lead to arbitrary code execution. This can allow a remote attacker to access confidential data, compromise its integrity, and cause a denial of service using malicious web content. **Recommendations** For Safari version prior to 14.1.1, update to Safari 14.1.1 or later. For tvOS version prior to 14.6, update to tvOS 14.6 or later. For iOS version prior to 14.6, update to iOS 14.6 or later. For iPadOS version prior to 14.6, update to iPadOS 14.6 or later. For macOS Big Sur version prior to 11.4, update to macOS Big Sur 11.4 or later. For watchOS version prior to 7.5, update to watchOS 7.5 or later.