Homebrew up to 4.2.19 ELF File os/linux/elf.rb Remote Code Execution

Summaryinfo

A vulnerability identified as critical has been detected in Homebrew brew up to 4.2.19. This issue affects some unknown processing of the file os/linux/elf.rb of the component ELF File Handler. The manipulation leads to Remote Code Execution. This vulnerability is listed as CVE-2024-42381. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Homebrew brew up to 4.2.19. This issue affects some unknown functionality of the file os/linux/elf.rb of the component ELF File Handler. The manipulation with an unknown input leads to a remote code execution vulnerability. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.)

The advisory is shared at github.com. The identification of this vulnerability is CVE-2024-42381 since 07/31/2024. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

Upgrading to version 4.2.20 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 916b37388d3851a8a93a8e9b4adc38873680ead7 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2024-39586). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Homebrew

Name

• brew

Version

• 4.2.0
• 4.2.1
• 4.2.2
• 4.2.3
• 4.2.4
• 4.2.5
• 4.2.6
• 4.2.7
• 4.2.8
• 4.2.9
• 4.2.10
• 4.2.11
• 4.2.12
• 4.2.13
• 4.2.14
• 4.2.15
• 4.2.16
• 4.2.17
• 4.2.18
• 4.2.19

License

• open-source

Website

• Product: https://github.com/Homebrew/brew/

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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