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Gentoo Linux Security Advisory                           GLSA 202003-38
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                                           https://security.gentoo.org/
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 Severity: High
    Title: PECL Imagick: Arbitrary code execution
     Date: March 19, 2020
     Bugs: #687030
       ID: 202003-38

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Synopsis
========

A vulnerability in Imagick PHP extension might allow an attacker to
execute arbitrary code.

Background
==========

Imagick is a PHP extension to create and modify images using the
ImageMagick library.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-php/pecl-imagick         < 3.4.4                    >= 3.4.4

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

An out-of-bounds write vulnerability was discovered in the Imagick PHP
extension.

Impact
======

A remote attacker, able to upload specially crafted images which will
get processed by Imagick, could possibly execute arbitrary code with
the privileges of the process or cause a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Imagick PHP extension users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-php/pecl-imagick-3.4.4"

References
==========

[ 1 ] CVE-2019-11037
      https://nvd.nist.gov/vuln/detail/CVE-2019-11037

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

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

 https://security.gentoo.org/glsa/202003-38

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