CVE-2021-30857

Description

A race condition was addressed with improved locking. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, tvOS 15, iOS 15 and iPadOS 15, watchOS 8, macOS Big Sur 11.6. A malicious application may be able to execute arbitrary code with kernel privileges.

References

Link	Tags
https://support.apple.com/en-us/HT212804
https://support.apple.com/en-us/HT212805
https://support.apple.com/en-us/HT212807
https://support.apple.com/en-us/HT212814
https://support.apple.com/en-us/HT212819
https://support.apple.com/en-us/HT212815

Frequently Asked Questions

What is the severity of CVE-2021-30857?: CVE-2021-30857 has been scored as a high severity vulnerability.
How to fix CVE-2021-30857?: To fix CVE-2021-30857, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-30857 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-30857 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-30857?: CVE-2021-30857 affects Apple macOS, Apple macOS, Apple macOS, Apple macOS, Apple macOS, Apple macOS.

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Description

Category

CWE-362 – Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

References

Frequently Asked Questions