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

Gentoo Linux Security Advisory GLSA 200912-02
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http://security.gentoo.org/
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Severity: Normal
Title: Ruby on Rails: Multiple vulnerabilities
Date: December 20, 2009
Bugs: #200159, #237385, #247549, #276279, #283396, #294797
ID: 200912-02

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Synopsis
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Multiple vulnerabilities have been discovered in Rails, the worst of
which leading to the execution of arbitrary SQL statements.

Background
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Ruby on Rails is a web-application and persistence framework.

Affected packages
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-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-ruby/rails < 2.2.2 >=3D 2.3.5
*>=3D 2.2.3-r1

Description
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The following vulnerabilities were discovered:

* sameer reported that lib/action_controller/cgi_process.rb removes
the :cookie_only attribute from the default session options
(CVE-2007-6077), due to an incomplete fix for CVE-2007-5380 (GLSA
200711-17).

* Tobias Schlottke reported that the :limit and ffset parameters of
ActiveRecord::Base.find() are not properly sanitized before being
processed (CVE-2008-4094).

* Steve from Coderrr reported that the CRSF protection in
protect_from_forgery() does not parse the text/plain MIME format
(CVE-2008-7248).

* Nate reported a documentation error that leads to the assumption
that a block returning nil passed to
authenticate_or_request_with_http_digest() would deny access to the
requested resource (CVE-2009-2422).

* Brian Mastenbrook reported an input sanitation flaw, related to
multibyte characters (CVE-2009-3009).

* Gabe da Silveira reported an input sanitation flaw in the
strip_tags() function (CVE-2009-4214).

* Coda Hale reported an information disclosure vulnerability related
to HMAC digests (CVE-2009-3086).

Impact
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A remote attacker could send specially crafted requests to a vulnerable
application, possibly leading to the execution of arbitrary SQL
statements or a circumvention of access control. A remote attacker
could also conduct session fixation attacks to hijack a user's session
or bypass the CSRF protection mechanism, or furthermore conduct
Cross-Site Scripting attacks or forge a digest via multiple attempts.

Workaround
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There is no known workaround at this time.

Resolution
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All Ruby on Rails 2.3.x users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=3Ddev-ruby/rails-2.3.5"

All Ruby on Rails 2.2.x users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "=3Ddev-ruby/rails-2.2.3-r1"

NOTE: All applications using Ruby on Rails should also be configured to
use the latest version available by running "rake rails:update" inside
the application directory.

References
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[ 1 ] CVE-2007-5380
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2007-5380
[ 2 ] CVE-2007-6077
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2007-6077
[ 3 ] CVE-2008-4094
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2008-4094
[ 4 ] CVE-2008-7248
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2008-7248
[ 5 ] CVE-2009-2422
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2009-2422
[ 6 ] CVE-2009-3009
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2009-3009
[ 7 ] CVE-2009-3086
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2009-3086
[ 8 ] CVE-2009-4214
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2009-4214
[ 9 ] GLSA 200711-17
http://www.gentoo.org/security/en/glsa/glsa-200711-17.xml

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

http://security.gentoo.org/glsa/glsa-200912-02.xml

Concerns?
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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
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Copyright 2009 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