Vulnerability · Published Jul 31, 2024 · Assigned by mitre
CVE-2024-42381
High 8.3
In plain English
A high-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).
Official 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.)
Affected products (as reported)
Weakness: CWE-830 · Vector: CVSS:3.1/AC:H/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:R
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