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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