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Gentoo: GLSA-202506-12 critical: JSON-LibJSON code execution

gentoo
Calendar Grey June 12, 2025
Dist Gentoo Esm H88
Upgrade LibYAML on Gentoo immediately to patch a shell command injection vulnerability in current versions and protect against security risks by installing the latest release.
A vulnerability has been discovered in YAML-LibYAML, which can lead to shell injection.

Summary

YAML-LibYAML uses the legacy '2-arg' open() call which is susceptible to shell injection via malicious filenames.

Topics%20covered

Topics Covered

security advisory gentoo software update normal shell injection YAML-LibYAML

Resolution

All YAML-LibYAML users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=dev-perl/YAML-LibYAML-0.903.0"

References

[ 1 ] CVE-2025-40908 https://nvd.nist.gov/vuln/detail/CVE-2025-40908

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/202506-11
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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: Normal
Title: YAML-LibYAML: Shell injection
Date: June 12, 2025
Bugs: #949498
ID: 202506-11

Topics%20covered

Topics Covered

security advisory gentoo software update normal shell injection YAML-LibYAML

Synopsis

A vulnerability has been discovered in YAML-LibYAML, which can lead to shell injection.

Background

YAML-LibYAML provides YAML Serialization using XS and libyaml for Perl.

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Affected Packages

Package Vulnerable Unaffected --------------------- ------------ ------------ dev-perl/YAML-LibYAML < 0.903.0 >= 0.903.0

Impact

Shell injection may be used to execute arbitrary code using a malicious filename.

Workaround

There is no known workaround at this time.

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