CVE-2021-30877
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.
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Affected Software
Remediation
Patch Available
Patch Available
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Event History
Frequently Asked Questions
What is CVE-2021-30877?
CVE-2021-30877 is a vulnerability in AppleScript that allows an out-of-bounds read. It has been addressed with improved bounds checking.
What is the severity of CVE-2021-30877?
The severity of CVE-2021-30877 is not specified.
Which software versions are affected by CVE-2021-30877?
macOS Big Sur versions up to and excluding 11.6.1, Apple Catalina, and macOS Monterey versions up to and excluding 12.0.1 are affected by CVE-2021-30877.
How can I fix CVE-2021-30877?
To fix CVE-2021-30877, update your macOS Big Sur to version 11.6.1, or update your macOS Monterey to version 12.0.1.
Where can I find more information about CVE-2021-30877?
You can find more information about CVE-2021-30877 on the Apple support website at [https://support.apple.com/en-us/HT212871](https://support.apple.com/en-us/HT212871), [https://support.apple.com/en-us/HT212872](https://support.apple.com/en-us/HT212872), and [https://support.apple.com/en-us/HT212869](https://support.apple.com/en-us/HT212869).