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[gentoo-announce] [ GLSA 201701-18 ] Python: Multiple vulnerabilities

Posted on 10 January 2017
Gentoo-announce

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From: Thomas Deutschmann <whissi@gentoo.org>
Reply-To: security@gentoo.org
To: gentoo-announce@lists.gentoo.org
Message-ID: <2a638fcf-1b06-96fa-4e23-256e73c28844@gentoo.org>
Subject: [ GLSA 201701-18 ] Python: Multiple vulnerabilities

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Gentoo Linux Security Advisory GLSA 201701-18
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https://security.gentoo.org/
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Severity: Normal
Title: Python: Multiple vulnerabilities
Date: January 10, 2017
Bugs: #531002, #585910, #585946
ID: 201701-18

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Synopsis
========
Multiple vulnerabilities have been found in Python, the worst of which
could lead to arbitrary code execution.

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

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-lang/python < 3.4.5 *>= 2.7.12
>= 3.4.5

Description
===========
Multiple vulnerabilities have been discovered in Python. Please review
the CVE identifiers referenced below for details.

Impact
======
A remote attacker could entice a user to open a specially crafted index
file using Python's dumbdbm module, possibly resulting in execution of
arbitrary code with the privileges of the process.

A remote attacker could entice a user to process a specially crafted
input stream using Python's zipimporter module, possibly allowing
attackers to cause unspecified impact.

A man in the middle attacker could strip out the STARTTLS command
without generating an exception on the Python SMTP client application,
preventing the establishment of the TLS layer.

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-2.7.12:2.7"

All Python 3 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-lang/python-3.4.5:3.4"

References
==========
[ 1 ] CVE-2016-0772
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-0772
[ 2 ] CVE-2016-5636
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-5636

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

https://security.gentoo.org/glsa/201701-18

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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