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Gentoo Linux Security Advisory                           GLSA 201805-02
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Python: Buffer overflow
     Date: May 02, 2018
     Bugs: #637938
       ID: 201805-02

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Synopsis
========

A buffer overflow in Python might allow remote attackers to execute
arbitrary code.

Background
==========

Python is an interpreted, interactive, object-oriented programming
language.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-lang/python            < 2.7.14:2.7            >= 2.7.14:2.7 

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

A buffer overflow was discovered in Python's PyString_DecodeEscape
function in stringobject.c.

Impact
======

Remote attackers, by enticing a user to process a specially crafted
file, could execute arbitrary code.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Python 2 users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-lang/python-2.7.14:2.7"

References
==========

[ 1 ] CVE-2017-1000158
      https://nvd.nist.gov/vuln/detail/CVE-2017-1000158

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

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

 https://security.gentoo.org/glsa/201805-02

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 2018 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

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