critical
9.3
CWE
119 120
Advisory Published
Updated

CVE-2021-30981: Buffer Overflow

First published: Tue Aug 24 2021(Updated: )

A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.1, Security Update 2021-008 Catalina, macOS Big Sur 11.6.2. An application may be able to execute arbitrary code with kernel privileges.

Credit: Liu Long Ant Security LightJack Dates RET2 Systems IncLiu Long Ant Security LightJack Dates RET2 Systems Inc cve@mitre.org Liu Long Ant Security LightJack Dates RET2 Systems Inc

Affected SoftwareAffected VersionHow to fix
Apple macOS Big Sur<11.6.2
11.6.2
Apple macOS Monterey<12.1
12.1
Apple Catalina
Apple Mac OS X>=10.15<10.15.7
Apple Mac OS X=10.15.7
Apple Mac OS X=10.15.7-security_update_2020-001
Apple Mac OS X=10.15.7-security_update_2021-001
Apple Mac OS X=10.15.7-security_update_2021-002
Apple Mac OS X=10.15.7-security_update_2021-003
Apple Mac OS X=10.15.7-security_update_2021-004
Apple Mac OS X=10.15.7-security_update_2021-005
Apple Mac OS X=10.15.7-security_update_2021-006
Apple Mac OS X=10.15.7-security_update_2021-007
Apple Mac OS X=10.15.7-supplemental_update
Apple macOS>=11.0<11.6.2
Apple macOS>=12.0<12.1

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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-2021-30981?

    CVE-2021-30981 refers to a buffer overflow vulnerability in the Intel Graphics Driver that has been fixed with improved bounds checking.

  • Which software versions are affected by CVE-2021-30981?

    The affected software versions include macOS Monterey 12.1, macOS Big Sur 11.6.2, and Apple Catalina.

  • How can I fix CVE-2021-30981?

    To fix CVE-2021-30981, make sure to update your operating system to the recommended version by Apple.

  • What is the severity of CVE-2021-30981?

    The severity of CVE-2021-30981 is not specified.

  • Where can I find more information about CVE-2021-30981?

    You can find more information about CVE-2021-30981 on the official Apple support website.

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