A new security update has been released for Gentoo Linux - Ruby on Rails: Multiple vulnerabilities. Here the announcement:

Gentoo Linux Security Advisory GLSA 200711-17
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http://security.gentoo.org/
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Severity: Normal
Title: Ruby on Rails: Multiple vulnerabilities
Date: November 14, 2007
Bugs: #195315, #182223
ID: 200711-17

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Synopsis
========

Several vulnerabilities were found in Ruby on Rails allowing for file
disclosure and theft of user credentials.

Background
==========

Ruby on Rails is a free web framework used to develop database-driven
web applications.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-ruby/rails < 1.2.5 >= 1.2.5

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

candlerb found that ActiveResource, when processing responses using the
Hash.from_xml() function, does not properly sanitize filenames
(CVE-2007-5380). The session management functionality allowed the
"session_id" to be set in the URL (CVE-2007-5380). BCC discovered that
the to_json() function does not properly sanitize input before
returning it to the user (CVE-2007-3227).

Impact
======

Unauthenticated remote attackers could exploit these vulnerabilities to
determine the existence of files or to read the contents of arbitrary
XML files; conduct session fixation attacks and gain unauthorized
access; and to execute arbitrary HTML and script code in a user's
browser session in context of an affected site by enticing a user to
browse a specially crafted URL.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Ruby on Rails users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-ruby/rails-1.2.5"

References
==========

[ 1 ] CVE-2007-3227
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3227
[ 2 ] CVE-2007-5379
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5379
[ 3 ] CVE-2007-5380
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5380

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

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

http://security.gentoo.org/glsa/glsa-200711-17.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 2007 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/2.5