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[gentoo-announce] [ GLSA 201802-05 ] Ruby: Command injection

Posted on 20 February 2018
Gentoo-announce

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From: Thomas Deutschmann <whissi@gentoo.org>
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To: gentoo-announce@lists.gentoo.org
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Subject: [ GLSA 201802-05 ] Ruby: Command injection

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Gentoo Linux Security Advisory GLSA 201802-05
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https://security.gentoo.org/
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Severity: Normal
Title: Ruby: Command injection
Date: February 20, 2018
Bugs: #641090
ID: 201802-05

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Synopsis
========
A vulnerability has been found in Ruby which may allow for arbitrary
command execution.

Background
==========
Ruby is an interpreted object-oriented programming language. The
elaborate standard library includes an HTTP server (=E2=80=9CWEBRick=E2=80==9D) and a
class for XML parsing (=E2=80=9CREXML=E2=80=9D).

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-lang/ruby < 2.2.9:2.2 >= 2.2.9:2.2

Description
===========
A command injection flaw was discovered in Net::FTP which impacts Ruby.

Impact
======
A remote attacker, by enticing a user to download and open a crafted
file from a malicious FTP server, could execute arbitrary commands with
the privileges of the process.

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

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

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-lang/ruby-2.2.9:2.2"

References
==========
[ 1 ] CVE-2017-17405
https://nvd.nist.gov/vuln/detail/CVE-2017-17405

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

https://security.gentoo.org/glsa/201802-05

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 2018 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


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