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Gentoo Linux Security Advisory                           GLSA 202003-26
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Python: Multiple vulnerabilities
     Date: March 15, 2020
     Bugs: #676700, #680246, #680298, #684838, #689822
       ID: 202003-26

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Synopsis
========

Multiple vulnerabilities have been found in Python, the worst of which
could result in a Denial of Service condition.

Background
==========

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

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-lang/python            < 2.7.17:2.7            >= 2.7.17:2.7
                              < 3.5.7:3.5/3.5m      >= 3.5.7:3.5/3.5m
                              < 3.6.9:3.6/3.6m      >= 3.6.9:3.6/3.6m
                              < 3.7.4:3.7/3.7m      >= 3.7.4:3.7/3.7m

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

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

Impact
======

A remote attacker could possibly perform a CRLF injection attack,
obtain sensitive information, trick Python into sending cookies to the
wrong domain or cause a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Python 2.7.x users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-lang/python-2.7.17:2.7"

All Python 3.5.x users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-lang/python-3.5.7:3.5/3.5m"

All Python 3.6.x users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-lang/python-3.6.9:3.6/3.6m"

All Python 3.7x users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-lang/python-3.7.4:3.7/3.7m"

References
==========

[ 1 ] CVE-2018-20852
      https://nvd.nist.gov/vuln/detail/CVE-2018-20852
[ 2 ] CVE-2019-5010
      https://nvd.nist.gov/vuln/detail/CVE-2019-5010
[ 3 ] CVE-2019-9636
      https://nvd.nist.gov/vuln/detail/CVE-2019-9636
[ 4 ] CVE-2019-9740
      https://nvd.nist.gov/vuln/detail/CVE-2019-9740
[ 5 ] CVE-2019-9947
      https://nvd.nist.gov/vuln/detail/CVE-2019-9947
[ 6 ] CVE-2019-9948
      https://nvd.nist.gov/vuln/detail/CVE-2019-9948

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

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

 https://security.gentoo.org/glsa/202003-26

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