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Gentoo Linux Security Advisory                           GLSA 201908-02
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: libpng: Multiple vulnerabilities
     Date: August 03, 2019
     Bugs: #683366
       ID: 201908-02

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Synopsis
========

Multiple vulnerabilities have been found in libpng, the worst of which
could result in a Denial of Service condition.

Background
==========

libpng is a standard library used to process PNG (Portable Network
Graphics) images. It is used by several programs, including web
browsers and potentially server processes.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  media-libs/libpng           < 1.6.37:0               >= 1.6.37:0 

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

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

Impact
======

A remote attacker, by enticing a user to process a specially crafted
PNG file, could cause a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All libpng users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=media-libs/libpng-1.6.37"

References
==========

[ 1 ] CVE-2018-14048
      https://nvd.nist.gov/vuln/detail/CVE-2018-14048
[ 2 ] CVE-2018-14550
      https://nvd.nist.gov/vuln/detail/CVE-2018-14550
[ 3 ] CVE-2019-7317
      https://nvd.nist.gov/vuln/detail/CVE-2019-7317

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

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

 https://security.gentoo.org/glsa/201908-02

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 2019 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