A race condition was addressed with improved locking. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A malicious application may be able to elevate privileges. Apple is aware of a report that this issue may have been actively exploited..
No PoCs from references.
- https://github.com/ARPSyndicate/cvemon
- https://github.com/H0aHuynh/LiRa
- https://github.com/H0aHuynh/LiRa14
- https://github.com/ModernPwner/cicuta_virosa
- https://github.com/Siguza/ios-resources
- https://github.com/developer3000S/PoC-in-GitHub
- https://github.com/houjingyi233/macOS-iOS-system-security
- https://github.com/janderson61890/jailbreak
- https://github.com/joydo/CVE-Writeups
- https://github.com/nomi-sec/PoC-in-GitHub
- https://github.com/pattern-f/TQ-pre-jailbreak
- https://github.com/synacktiv/CVE-2021-1782