CVE-2021-30977: Buffer Overflow

Published 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. A malicious application may be able to execute arbitrary code with kernel privileges.

Other sources

Graphics Drivers. A buffer overflow was addressed with improved bounds checking.

Credit

Jack Dates(RET2 Systems Inc)

Affected Software

16 affected componentsFixes available
Apple macOS Big Sur<11.6.2
11.6.2
Apple Catalina
Apple macOS Monterey<12.3
12.3
Apple iOS and macOS>=10.15<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-security_update_2021-005
Apple iOS and macOS=10.15.7-security_update_2021-006
Apple iOS and macOS=10.15.7-security_update_2021-007
Apple iOS and macOS=10.15.7-supplemental_update
Apple macOS>=11.0<11.6.2
Apple macOS>=12.0<12.3

Event History

Aug 24, 2021
CVE Published
via MITRE·06:51 PM
Data Sourced
via MITRE·06:51 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is CVE-2021-30977?

CVE-2021-30977 is a vulnerability in Graphics Drivers that allows for a buffer overflow due to inadequate bounds checking.

2

How does CVE-2021-30977 affect Apple Catalina?

Apple Catalina is affected by CVE-2021-30977.

3

How does CVE-2021-30977 affect macOS Monterey 12.1?

macOS Monterey 12.1 is affected by CVE-2021-30977.

4

How does CVE-2021-30977 affect macOS Big Sur 11.6.2?

macOS Big Sur 11.6.2 is affected by CVE-2021-30977.

5

How can I fix CVE-2021-30977?

To fix CVE-2021-30977, you should apply the necessary security updates provided by Apple.

Company

Resources

Contact

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