Gentoo alert 202506-11 (YAML-LibYAML)

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glsamaker@gentoo.org
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gentoo-announce@lists.gentoo.org
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[gentoo-announce] [ GLSA 202506-11 ] YAML-LibYAML: Shell injection
Date:
             
 
Thu, 12 Jun 2025 09:59:15 -0000
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<174972235576.7.12642083951321668677@3f85d36892cf>
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Gentoo Linux Security Advisory                           GLSA 202506-11
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: YAML-LibYAML: Shell injection
     Date: June 12, 2025
     Bugs: #949498
       ID: 202506-11

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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.

Affected packages
=================

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

Description
===========

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

Impact
======

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

Workaround
==========

There is no known workaround at this time.

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

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.

License
=======

Copyright 2025 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5


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