A vulnerability was found in Apple macOS up to 12.0 (Operating System) and classified as critical. This issue affects an unknown part of the component IOMobileFrameBuffer. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability.

The weakness was released 10/25/2021 as HT212869 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2021-30883. Technical details are unknown but an exploit is available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/26/2024). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

An application may be able to execute arbitrary code with kernel privileges

It is declared as highly functional. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 05/23/2022 with a due date of 06/13/2022:

Apply updates per vendor instructions.

Upgrading to version 12.0.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

A memory corruption issue was addressed with improved memory handling.

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• Operating System

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• Apple

Name

• macOS

Version

• 12.0

License

• commercial

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