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Gentoo Linux Security Advisory GLSA 202005-09
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https://security.gentoo.org/
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Severity: Normal
Title: Python: Denial of Service
Date: May 14, 2020
Bugs: #707822
ID: 202005-09
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Synopsis
========
A vulnerability in Python could lead to a Denial of Service condition.
Background
==========
Python is an interpreted, interactive, object-oriented programming
language.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-lang/python < 2.7.18:2.7 >= 2.7.18:2.7
< 3.6.10-r2:3.6 >= 3.6.10-r2:3.6
< 3.7.7-r2:3.7 >= 3.7.7-r2:3.7
< 3.8.2-r2:3.8 >= 3.8.2-r2:3.8
Description
===========
An issue was discovered in urllib.request.AbstractBasicAuthHandler
which allowed a remote attacker to send malicious data causing
extensive regular expression backtracking.
Impact
======
An attacker could cause a possible 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-2.7.18:2.7"
All Python 3.6 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-lang/python-3.6.10-r2:3.6"
All Python 3.7 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-lang/python-3.7.7-r2:3.7"
All Python 3.8 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-lang/python-3.8.2-r2:3.8"
References
==========
[ 1 ] CVE-2020-8492
https://nvd.nist.gov/vuln/detail/CVE-2020-8492
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202005-09
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