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CVE-2024-42381

Date: July 30, 2024

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.)

Language: Ruby

Severity Score

Related Resources (9)

https://brew.sh/2024/07/30/homebrew-security-audit/
https://github.com/trailofbits/publications/blob/master/reviews/2023-08-28-homebrew-securityreview.pdf
https://github.com/Homebrew/brew/releases/tag/4.2.20
https://github.com/Homebrew/brew/pull/17136
https://nvd.nist.gov/vuln/detail/CVE-2024-42381
https://github.com/Homebrew/brew/tree/237d1e783f7ee261beaba7d3f6bde22da7148b0a
https://github.com/Homebrew/brew/commit/916b37388d3851a8a93a8e9b4adc38873680ead7
https://blog.trailofbits.com/2024/07/30/our-audit-of-homebrew/
https://www.mend.io/vulnerability-database/CVE-2024-42381

Severity Score

Weakness Type (CWE)

Inclusion of Web Functionality from an Untrusted Source

CWE-830

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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