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Gentoo Linux Security Advisory                           GLSA 201710-28
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Jython: Arbitrary code execution
     Date: October 29, 2017
     Bugs: #621876
       ID: 201710-28

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Synopsis
========

A vulnerability in Jython may lead to arbitrary code execution.

Background
==========

An implementation of Python written in Java.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-java/jython             < 2.7.0-r2               >= 2.7.0-r2 

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

It was found that Jython is vulnerable to arbitrary code execution by
sending a serialized function to the deserializer.

Impact
======

Remote execution of arbitrary code by enticing a user to execute
malicious code.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Jython users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-java/jython-2.7.0-r2"

References
==========

[ 1 ] CVE-2016-4000
      https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4000

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

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

 https://security.gentoo.org/glsa/201710-28

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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