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CVE-2024-42381

Published: Jul 31, 2024

Modified: Jul 31, 2024

PUBLISHED

CVSS v3.1

8.3

HIGH

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.)

Vendor	Product	Versions
n/a	n/a	affected `n/a`

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AC:H/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:R

Attack Complexity

High

Attack Vector

Network

Availability

High

Confidentiality

High

Integrity

High

Privileges Required

None

Scope

Changed

User Interaction

Required

References

https://github.com/Homebrew/brew/tree/237d1e783f7ee261beaba7d3f6bde22da7148b0a

https://github.com/trailofbits/publications/blob/master/reviews/2023-08-28-homebrew-securityreview.pdf

https://blog.trailofbits.com/2024/07/30/our-audit-of-homebrew/

https://brew.sh/2024/07/30/homebrew-security-audit/

https://github.com/Homebrew/brew/commit/916b37388d3851a8a93a8e9b4adc38873680ead7

https://github.com/Homebrew/brew/releases/tag/4.2.20

https://github.com/Homebrew/brew/pull/17136

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