critical
9.3
CWE
362
Advisory Published
CVE Published
Updated

CVE-2020-27921: Race Condition

First published: Thu Nov 12 2020(Updated: )

A race condition was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, macOS Big Sur 11.0.1. An application may be able to execute arbitrary code with kernel privileges.

Credit: product-security@apple.com Linus Henze (pinauten.de) Linus Henze (pinauten.de)

Affected SoftwareAffected VersionHow to fix
Apple Mac OS X<11.0.1
Apple Mac OS X<11.1.0
Apple macOS Big Sur<11.1
11.1
Apple Catalina
Apple Mojave
Apple macOS Big Sur<11.0.1
11.0.1

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2020-27921?

    CVE-2020-27921 is a vulnerability in the Kernel that was addressed with improved state handling.

  • Which software versions are affected by CVE-2020-27921?

    The affected software versions are macOS Big Sur 11.0.1 and 11.1, Apple Catalina, and Apple Mojave.

  • How can I fix CVE-2020-27921?

    To fix CVE-2020-27921, update your macOS to the latest version available.

  • Where can I find more information about CVE-2020-27921?

    You can find more information about CVE-2020-27921 on the official Apple support page: [https://support.apple.com/en-us/HT212011](https://support.apple.com/en-us/HT212011) and [https://support.apple.com/en-us/HT211931](https://support.apple.com/en-us/HT211931).

  • What is the Common Weakness Enumeration (CWE) for CVE-2020-27921?

    The CWE for CVE-2020-27921 is 362.

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