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Gentoo Linux Security Advisory                           GLSA 202101-18
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Python: Multiple vulnerabilities
     Date: January 24, 2021
     Bugs: #749339, #759928, #766189
       ID: 202101-18

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

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

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-lang/python          < 2.7.18-r6:2.7        >= 2.7.18-r6:2.7
                              < 3.6.12-r2:3.6        >= 3.6.12-r2:3.6
                               < 3.7.9-r2:3.7         >= 3.7.9-r2:3.7
                               < 3.8.7-r1:3.8         >= 3.8.7-r1:3.8
                               < 3.9.1-r1:3.9         >= 3.9.1-r1:3.9

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

Impact
=====
A remote attacker could possibly execute arbitrary code with the
privileges of the process, or cause a Denial of Service condition.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All Python 2.7 users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-lang/python-2.7.18-r5"

All Python 3.6 users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-lang/python-3.6.12-r1"

All Python 3.7 users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-lang/python-3.7.9-r1"

All Python 3.8 users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-lang/python-3.8.6-r1"

All Python 3.9 users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-lang/python-3.9.0-r1"

References
=========
[ 1 ] CVE-2020-26116
      https://nvd.nist.gov/vuln/detail/CVE-2020-26116
[ 2 ] CVE-2021-3177
      https://nvd.nist.gov/vuln/detail/CVE-2021-3177

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

 https://security.gentoo.org/glsa/202101-18

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 2021 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/