CVE-2021-30876

Published Aug 24, 2021
·
Updated

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.0.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. Processing a maliciously crafted AppleScript binary may result in unexpected application termination or disclosure of process memory.

Credit

Jeremy Brown, hjy79425575

Affected Software

18 affected componentsFixes available
Apple macOS Big Sur<11.6.1
11.6.1
Apple Catalina
Apple macOS Monterey<12.0.1
12.0.1
Apple iOS and macOS>=10.15<=10.15.6
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-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-supplemental_update
Apple macOS>=11.0<11.6.1
Apple macOS>=12.0<12.0.1

Remediation

Patch Available

https://support.apple.com/en-us/HT212869

Patch Available

https://support.apple.com/en-us/HT212871

Patch Available

https://support.apple.com/en-us/HT212872

Event History

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

1

What is the vulnerability ID for this out-of-bounds read vulnerability?

The vulnerability ID for this out-of-bounds read vulnerability is CVE-2021-30876.

2

What is the affected software for this vulnerability?

The affected software for this vulnerability includes macOS Big Sur (up to version 11.6.1), Catalina, and macOS Monterey (up to version 12.0.1).

3

How was the out-of-bounds read vulnerability addressed?

The out-of-bounds read vulnerability was addressed with improved bounds checking.

4

What is the severity of the CVE-2021-30876 vulnerability?

The severity of the CVE-2021-30876 vulnerability is not specified.

5

How can I fix the CVE-2021-30876 vulnerability?

To fix the CVE-2021-30876 vulnerability, you should update your Apple operating system to the latest version available.

Company

Resources

Contact

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