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Gentoo Linux Security Advisory                           GLSA 202003-25
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: libTIFF: Multiple vulnerabilities
     Date: March 15, 2020
     Bugs: #639700, #690732, #699868
       ID: 202003-25

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Synopsis
========

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

Background
==========

The TIFF library contains encoding and decoding routines for the Tag
Image File Format. It is called by numerous programs, including GNOME
and KDE applications, to interpret TIFF images.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  media-libs/tiff              < 4.1.0                    >= 4.1.0

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

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

Impact
======

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

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All libTIFF users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=media-libs/tiff-4.1.0"

References
==========

[ 1 ] CVE-2017-17095
      https://nvd.nist.gov/vuln/detail/CVE-2017-17095
[ 2 ] CVE-2018-19210
      https://nvd.nist.gov/vuln/detail/CVE-2018-19210
[ 3 ] CVE-2019-17546
      https://nvd.nist.gov/vuln/detail/CVE-2019-17546
[ 4 ] CVE-2019-6128
      https://nvd.nist.gov/vuln/detail/CVE-2019-6128
[ 5 ] CVE-2019-7663
      https://nvd.nist.gov/vuln/detail/CVE-2019-7663

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

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

 https://security.gentoo.org/glsa/202003-25

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 2020 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