CVE-2024-42381

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.)

References

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

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

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

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

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

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

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

Details

Source: Mitre, NVD

Published: 2024-07-31

Updated: 2024-08-01

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 8.3

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Severity: High