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Gentoo Linux Security Advisory GLSA 202405-27
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https://security.gentoo.org/
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Severity: Normal
Title: Epiphany: Buffer Overflow
Date: May 08, 2024
Bugs: #839786
ID: 202405-27

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Synopsis
========

A vulnerability has been discovered in Epiphany, which can lead to a
buffer overflow.

Background
==========

Epiphany is a GNOME webbrowser based on the Mozilla rendering engine
Gecko.

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

Package Vulnerable Unaffected
------------------- ------------ ------------
www-client/epiphany < 42.4 >= 42.4

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

A vulnerability has been discovered in Epiphany. Please review the CVE identifier referenced below for details.

Impact
======

In GNOME Epiphany an HTML document can trigger a client buffer overflow
(in ephy_string_shorten) via a long page title. The issue occurs because
the number of bytes for a UTF-8 ellipsis character is not properly
considered.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Epiphany users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/epiphany-42.4"

References
==========

[ 1 ] CVE-2022-29536
https://nvd.nist.gov/vuln/detail/CVE-2022-29536

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

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

https://security.gentoo.org/glsa/202405-27

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 2024 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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