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CVE-2024-42381

8.3 · HIGH

os/linux/elf.rb in Homebrew brew before 4.2.20 uses ldd to load ELF files obtained from untrusted sources, which allows attackers to achieve code execution via an ELF file with a custom .interp sec…

Published Jul 31, 2024CWE-830EPSS 0.65%

Overview

CVE-2024-42381 is a high-severity vulnerability. It was published on July 31, 2024 and has a CVSS 3.1 base score of 8.3 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

os/linux/elf.rb in Homebrew brew before 4.2.20 uses ldd to load ELF files obtained from untrusted sources, which allows attackers to achieve code execution via an ELF file with a custom .interp section. NOTE: this code execution would occur during an un-sandboxed binary relocation phase, which occurs before a user would expect execution of downloaded package content. (237d1e783f7ee261beaba7d3f6bde22da7148b0a was the tested vulnerable version.)

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refblog.trailofbits.com/2024/07/30/our-audit-of-homebrew/Refbrew.sh/2024/07/30/homebrew-security-audit/GitHubgithub.com/Homebrew/brew/commit/916b37388d3851a8a93a8e9b4adc38873680ead7GitHubgithub.com/Homebrew/brew/pull/17136GitHubgithub.com/Homebrew/brew/releases/tag/4.2.20GitHubgithub.com/Homebrew/brew/tree/237d1e783f7ee261beaba7d3f6bde22da7148b0aGitHubgithub.com/trailofbits/publications/blob/master/reviews/2023-08-28-homebrew-securityreview.pdf

How CyberStrike helps

Frequently asked questions

What is CVE-2024-42381?

CVE-2024-42381 is a high-severity vulnerability. It was published on July 31, 2024 and has a CVSS 3.1 base score of 8.3 (HIGH).

How severe is CVE-2024-42381?

This vulnerability has a CVSS 3.1 base score of 8.3, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-42381?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-42381?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-42381 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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