CVE-2020-27904: High severity Apple macOS Big Sur vulnerability

Published Nov 12, 2020
·
Updated

A logic issue existed resulting in memory corruption. This was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1. An application may be able to execute arbitrary code with kernel privileges.

Other sources

Kernel. A logic issue existed resulting in memory corruption. This was addressed with improved state management.

Credit

Zuozhi Fan@@pattern_F_(Ant Group Tianqong Security Lab), Zuozhi Fan@@pattern_F_(Ant Group Tianqiong Security Lab)

Affected Software

5 affected componentsFixes available
Apple macOS Big Sur<11.0.1
11.0.1
Apple macOS Big Sur<11.2
11.2
Apple Catalina
macOS Mojave
macOS<11.0.1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Apple macOS to a version that resolves this vulnerability.

    Fixed in 11.0.1
  2. Upgrade

    Upgrade Apple macOS to a version that resolves this vulnerability.

    Fixed in 11.2
  3. Upgrade

    Upgrade macOS Big Sur to a version that resolves this vulnerability.

    Fixed in 11.0.1

Event History

Dec 8, 2020
CVE Published
via MITRE·08:07 PM
Data Sourced
via MITRE·08:07 PM
DescriptionWeakness
Event
09:15 PM

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is CVE-2020-27904?

CVE-2020-27904 is a vulnerability that existed in the kernel which resulted in memory corruption.

2

How was CVE-2020-27904 addressed?

CVE-2020-27904 was addressed with improved state management.

3

Which versions of macOS Big Sur are affected by CVE-2020-27904?

macOS Big Sur versions up to and excluding 11.0.1 are affected by CVE-2020-27904.

4

Is macOS Catalina affected by CVE-2020-27904?

No, macOS Catalina is not affected by CVE-2020-27904.

5

Is macOS Mojave affected by CVE-2020-27904?

No, macOS Mojave is not affected by CVE-2020-27904.

Company

Resources

Contact

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