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Gentoo: PHP Library Remote Code Execution Vulnerabilities GLSA-202510-07

gentoo
Calendar Grey August 6, 2025
Dist Gentoo Esm H88
Multiple flaws in Composer could lead to code execution problems necessitating improvements to bolster system protection.

Multiple vulnerabilities have been discovered in Composer, the worst of which can lead to arbitrary code execution.

Summary

Integrators using Composer code to call `VcsDriver::getFileContent` can have a code injection vulnerability if the user can control the `$file` or `$identifier` argument. This leads to a vulnerability on packagist.org for example where the composer.json's `readme` field can be used as a vector for injecting parameters into hg/Mercurial via the `$file` argument, or git via the `$identifier` argument if you allow arbitrary data there (Packagist does not, but maybe other integrators do). Composer itself should not be affected by the vulnerability as it does not call `getFileContent` with arbitrary data into `$file`/`$identifier`.

Topics%20covered

Topics Covered

security advisory Gentoo arbitrary code execution code injection normal composer

Resolution

Gentoo has discontinued support for composer and the package should be removed:
# emerge --sync # emerge --ask --verbose --depclean "dev-php/composer"

References

[ 1 ] CVE-2022-24828 https://nvd.nist.gov/vuln/detail/CVE-2022-24828 [ 2 ] CVE-2023-43655 https://nvd.nist.gov/vuln/detail/CVE-2023-43655

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/202508-06
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Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity
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Severity: Normal
Title: Composer: Multiple Vulnerabilities
Date: August 06, 2025
Bugs: #838268
ID: 202508-06

Topics%20covered

Topics Covered

security advisory Gentoo arbitrary code execution code injection normal composer

Synopsis

Multiple vulnerabilities have been discovered in Composer, the worst of which can lead to arbitrary code execution.

Background

Composer is a dependency manager for the PHP programming language.

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Affected Packages

Package Vulnerable Unaffected ---------------- ------------ ------------ dev-php/composer <= 9999 Vulnerable!

Impact

Please review the referenced CVE identifiers for details.

Workaround

There is no known workaround at this time.

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