Apple Multiple Products Race Condition Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2021-11-03

[ Description ]Official description

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..

CISA: Apple iOS, iPadOs, macOS, watchOS, and tvOS contain a race condition vulnerability that may allow a malicious application to elevate privileges.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 17 Nov 2021): Apply updates per vendor instructions.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• support.apple.com/en-us/HT212146Release NotesVendor Advisory
• support.apple.com/en-us/HT212147Release NotesVendor Advisory
• support.apple.com/en-us/HT212148Release NotesVendor Advisory
• support.apple.com/en-us/HT212149Release NotesVendor Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource