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Gentoo Linux Security Advisory                           GLSA 201706-25
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Graphite: User-assisted execution of arbitrary code
     Date: June 22, 2017
     Bugs: #616034
       ID: 201706-25

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Synopsis
========

An out-of-bounds write in Graphite might allow remote attackers to
execute arbitrary code.

Background
==========

Graphite is a "smart font" system developed specifically to handle the
complexities of lesser-known languages of the world.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  media-gfx/graphite2         < 1.3.8-r1               >= 1.3.8-r1

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

An out-of-bounds write has been found in the Graphite 2 library.

Impact
======

A remote attacker could entice a user to open a specially crafted
document using Graphite or an application linked against Graphite
library, possibly resulting in execution of arbitrary code with the
privileges of the process or a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Graphite users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=media-gfx/graphite2-1.3.8-r1"

References
==========

[ 1 ] CVE-2017-5436
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-5436

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

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

 https://security.gentoo.org/glsa/201706-25

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 2017 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.

http://creativecommons.org/licenses/by-sa/2.5