Gentoo Linux Security Advisory 202003-45 ≈ Packet Storm


– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
Gentoo Linux Security Advisory GLSA 202003-45
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
https://security.gentoo.org/
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

Severity: High
Title: PyYAML: Arbitrary code execution
Date: March 19, 2020
Bugs: #659348
ID: 202003-45

– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –

Synopsis
========

A flaw in PyYAML might allow attackers to execute arbitrary code.

Background
==========

PyYAML is a YAML parser and emitter for Python.

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

——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 dev-python/pyyaml < 5.1 >= 5.1

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

It was found that using yaml.load() API on untrusted input could lead
to arbitrary code execution.

Impact
======

A remote attacker could entice a user to process specially crafted
input in an application using yaml.load() from PyYAML, possibly
resulting in execution of arbitrary code with the privileges of the
process or a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All PyYAML users should upgrade to the latest version:

# emerge –sync
# emerge –ask –oneshot –verbose « >=dev-python/pyyaml-5.1 »

References
==========

[ 1 ] CVE-2017-18342
https://nvd.nist.gov/vuln/detail/CVE-2017-18342

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

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

https://security.gentoo.org/glsa/202003-45

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



Source link

Laisser un commentaire

Votre adresse e-mail ne sera pas publiée. Les champs obligatoires sont indiqués avec *