GLSA 200510-05 Ruby: Security bypass vulnerability
Posted on: 10/06/2005 10:52 AM

A new security update has been released for Gentoo Linux - Ruby: Security bypass vulnerability. Here the announcement:

Gentoo Linux Security Advisory GLSA 200510-05
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http://security.gentoo.org/
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Severity: Normal
Title: Ruby: Security bypass vulnerability
Date: October 06, 2005
Bugs: #106996
ID: 200510-05

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Synopsis
========

Ruby is vulnerable to a security bypass of the safe level mechanism.

Background
==========

Ruby is an interpreted scripting language for quick and easy
object-oriented programming. Ruby supports the safe execution of
untrusted code using a safe level and taint flag mechanism.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-lang/ruby lt; 1.8.3 gt;= 1.8.3

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

Dr. Yutaka Oiwa discovered that Ruby fails to properly enforce safe
level protections.

Impact
======

An attacker could exploit this vulnerability to execute arbitrary code
beyond the restrictions specified in each safe level.

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 "gt;=dev-lang/ruby-1.8.3"

References
==========

[ 1 ] CAN-2005-2337
http://cve.mitre.org/cgi-bin/cvename.cgi?nameƊN-2005-2337
[ 2 ] Ruby release announcement
http://www.ruby-lang.org/en/20051003.html

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

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

http://security.gentoo.org/glsa/glsa-200510-05.xml

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
http://bugs.gentoo.org.

License
=======

Copyright 2005 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.

http://creativecommons.org/licenses/by-sa/2.0



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