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Gentoo Linux Security Advisory 201711-15

Gentoo Linux Security Advisory 201711-15
Posted Nov 20, 2017
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201711-15 - A vulnerability was discovered in PHPUnit which may allow an unauthenticated remote attacker to execute arbitrary PHP code. Versions less than 5.7.15-r1 are affected.

tags | advisory, remote, arbitrary, php
systems | linux, gentoo
advisories | CVE-2017-9841
MD5 | 3efd28186a638dcc6acc88c4c14ce3c5

Gentoo Linux Security Advisory 201711-15

Change Mirror Download
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Gentoo Linux Security Advisory GLSA 201711-15
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https://security.gentoo.org/
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Severity: Normal
Title: PHPUnit: Remote code execution
Date: November 19, 2017
Bugs: #635356
ID: 201711-15

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Synopsis
========

A vulnerability was discovered in PHPUnit which may allow an
unauthenticated remote attacker to execute arbitrary PHP code.

Background
==========

PHPUnit is a programmer-oriented testing framework for PHP. It is an
instance of the xUnit architecture for unit testing frameworks.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-php/phpunit < 5.7.15-r1 >= 5.7.15-r1

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

When PHPUnit is installed in a production environment via composer and
these modules are in a web accessible directory, the eval-stdin.php
file in PHPUnit contains vulnerable statements that trigger the
vulnerability.

Impact
======

A remote attacker could possibly execute arbitrary PHP code or cause a
Denial of Service condition.

Workaround
==========

There are several ways to fix or mitigate this vulnerability:

Remove PHPUnit from the production environment.

Update PHPUnit.

Manually apply the patch.

Disable direct access to the composer packages by placing .htaccess
file to /vendor folder.

Resolution
==========

All PHPUnit users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-php/phpunit-5.7.15-r1"

References
==========

[ 1 ] CVE-2017-9841
https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-9841

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

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

https://security.gentoo.org/glsa/201711-15

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

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