CVE-2021-30739: High severity apple macos vulnerability

Published May 24, 2021
·
Updated

A local attacker may be able to elevate their privileges. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. A memory corruption issue was addressed with improved validation.

Other sources

Kernel. A local attacker may be able to elevate their privileges.

Kernel. A memory corruption issue was addressed with improved validation.

Credit

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

Affected Software

33 affected componentsFixes available
Apple macOS Big Sur<11.4
11.4
Apple Catalina
Apple Mojave
Apple iOS and macOS>=10.14.0<=10.14.5
Apple iOS and macOS>=10.15<=10.15.6
Apple iOS and macOS=10.14.6
Apple iOS and macOS=10.14.6-security_update_2019-001
Apple iOS and macOS=10.14.6-security_update_2019-002
Apple iOS and macOS=10.14.6-security_update_2019-004
Apple iOS and macOS=10.14.6-security_update_2019-005
Apple iOS and macOS=10.14.6-security_update_2019-006
Apple iOS and macOS=10.14.6-security_update_2019-007
Apple iOS and macOS=10.14.6-security_update_2020-001
Apple iOS and macOS=10.14.6-security_update_2020-002
Apple iOS and macOS=10.14.6-security_update_2020-003
Apple iOS and macOS=10.14.6-security_update_2020-004
Apple iOS and macOS=10.14.6-security_update_2020-005
Apple iOS and macOS=10.14.6-security_update_2020-006
Apple iOS and macOS=10.14.6-security_update_2020-007
Apple iOS and macOS=10.14.6-security_update_2021-001
Apple iOS and macOS=10.14.6-security_update_2021-002
Apple iOS and macOS=10.14.6-security_update_2021-003
Apple iOS and macOS=10.14.6-supplemental_update
Apple iOS and macOS=10.14.6-supplemental_update_2
Apple iOS and macOS=10.15.7
Apple iOS and macOS=10.15.7-security_update_2020
Apple iOS and macOS=10.15.7-security_update_2020-001
Apple iOS and macOS=10.15.7-security_update_2020-005
Apple iOS and macOS=10.15.7-security_update_2020-007
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-supplemental_update
Apple macOS>=11.0.1<11.4

Event History

Sep 8, 2021
CVE Published
via MITRE·01:44 PM
Data Sourced
via MITRE·01:44 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is CVE-2021-30739?

CVE-2021-30739 is a vulnerability in the Kernel that allows a local attacker to potentially elevate their privileges.

2

How does CVE-2021-30739 affect macOS Big Sur 11.4?

macOS Big Sur 11.4 is affected by CVE-2021-30739. Users of this operating system version should be aware of this vulnerability.

3

What is the severity of CVE-2021-30739?

The severity of CVE-2021-30739 is not specified in the provided information.

4

How can I fix CVE-2021-30739?

To fix CVE-2021-30739, users should update their macOS to the latest version available and follow the recommendations provided by Apple.

5

Where can I find more information about CVE-2021-30739?

More information about CVE-2021-30739 can be found on the following Apple support articles: [link 1], [link 2], [link 3].

Contact

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