CVE-2021-30865: Input Validation

Published Aug 24, 2021
·
Updated

An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.6, Security Update 2021-005 Catalina. A malicious application may be able to execute arbitrary code with kernel privileges.

Other sources

Kernel. An out-of-bounds read was addressed with improved input validation.

Credit

Zweig(Kunlun Lab)

Affected Software

11 affected componentsFixes available
Apple macOS Big Sur<11.6
11.6
Apple Catalina
Apple iOS and macOS<10.15.7
Apple iOS and macOS=10.15.7
Apple iOS and macOS=10.15.7-security_update_2020-001
Apple iOS and macOS=10.15.7-security_update_2021-001
Apple iOS and macOS=10.15.7-security_update_2021-002
Apple iOS and macOS=10.15.7-security_update_2021-003
Apple iOS and macOS=10.15.7-security_update_2021-004
Apple iOS and macOS=10.15.7-supplemental_update
Apple macOS>=11.0<11.6

Event History

Aug 24, 2021
CVE Published
via MITRE·06:49 PM
Data Sourced
via MITRE·06:49 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2021-30865?

CVE-2021-30865 is a vulnerability in the Kernel that allows an out-of-bounds read due to improved input validation.

2

What software is affected by CVE-2021-30865?

The affected software includes macOS Big Sur versions up to and exclusive of 11.6, and Apple Catalina.

3

How severe is CVE-2021-30865?

The severity of CVE-2021-30865 is not specified.

4

How can I fix CVE-2021-30865?

To fix CVE-2021-30865, update to the latest version of macOS Big Sur or Apple Catalina as soon as it becomes available.

5

Where can I find more information about CVE-2021-30865?

You can find more information about CVE-2021-30865 on the Apple support page: [https://support.apple.com/en-us/HT212804](https://support.apple.com/en-us/HT212804) and [https://support.apple.com/en-us/HT212805](https://support.apple.com/en-us/HT212805).

Contact

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