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CVE-2021-30949

Description

A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.6.2, tvOS 15.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2 and iPadOS 15.2, watchOS 8.3. A malicious application may be able to execute arbitrary code with kernel privileges.

POC

Reference

- http://packetstormsecurity.com/files/165670/XNU-Kernel-mach_msg-Use-After-Free.html

Github

- https://github.com/ARPSyndicate/cvemon