A Nokogiri security update has been released for Gentoo Linux.

gentoo-announce: GLSA 202006-05 : Nokogiri: Command injection

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Gentoo Linux Security Advisory GLSA 202006-05
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  https://security.gentoo.org/
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Severity: Normal
Title: Nokogiri: Command injection
Date: June 13, 2020
Bugs: #691974
ID: 202006-05

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Synopsis
=======
Nokogiri has a vulnerability allowing arbitrary execution of code if a
certain function is used.

Background
=========
Nokogiri is an HTML, XML, SAX, and Reader parser.

Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-ruby/nokogiri < 1.10.4 >= 1.10.4

Description
==========
A command injection vulnerability in Nokogiri allows commands to be
executed in a subprocess by Ruby's Kernel.open method. Processes are
vulnerable only if the undocumented method
Nokogiri::CSS::Tokenizer#load_file is being passed untrusted user
input.

Impact
=====
A remote attacker could possibly execute arbitrary code with the
privileges of the process.

Workaround
=========
Avoid calling the undocumented method
Nokogiri::CSS::Tokenizer#load_file with untrusted user input.

Resolution
=========
All Nokogiri users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">?v-ruby/nokogiri-1.10.4"

References
=========
[ 1 ] CVE-2019-5477
  https://nvd.nist.gov/vuln/detail/CVE-2019-5477
[ 2 ] Upstream bug
  https://github.com/sparklemotion/nokogiri/issues/1915

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

  https://security.gentoo.org/glsa/202006-05

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