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Gentoo Linux Security Advisory GLSA 202505-07
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https://security.gentoo.org/
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Severity: High
Title: FreeType: Remote Code Execution
Date: May 14, 2025
Bugs: #951286
ID: 202505-07

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Synopsis
========

A vulnerability has been discovered in FreeType, which can lead to
remote code execution.

Background
==========

FreeType is a high-quality and portable font engine.

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

Package Vulnerable Unaffected
------------------- ------------ ------------
media-libs/freetype < 2.13.1 >= 2.13.1

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

Multiple vulnerabilities have been discovered in FreeType. Please review
the CVE identifiers referenced below for details.

Impact
======

An out of bounds write exists in FreeType when attempting to parse font subglyph structures related to TrueType GX and variable font files. The vulnerable code assigns a signed short value to an unsigned long and
then adds a static value causing it to wrap around and allocate too
small of a heap buffer. The code then writes up to 6 signed long
integers out of bounds relative to this buffer. This may result in
arbitrary code execution. This vulnerability may have been exploited in
the wild.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All FreeType users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/freetype-2.13.1"

References
==========

[ 1 ] CVE-2025-27363
https://nvd.nist.gov/vuln/detail/CVE-2025-27363

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202505-07

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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