yum info rubygem-aws
Loaded plugins: product-id, security, subscription-manager
Updating certificate-based repositories.
Installed Packages
Name        : rubygem-aws
Arch        : noarch
Version     : 2.5.5
Release     : 3.1.el6_1
Size        : 1.9 M
Repo        : installed
From repo   : aeolus-brew-nightly
Summary     : Ruby gem for all Amazon Web Services
URL         : http://github.com/appoxy/aws
License     : MIT
Description : The RightScale AWS gems have been designed to provide a robust, fast, and
            : secure interface to Amazon EC2, EBS, S3, SQS, SDB, and CloudFront. These gems
            : have been used in production by RightScale since late 2006 and are being
            : maintained to track enhancements made by Amazon

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Repo Used : 
http://download.lab.bos.redhat.com/rel-eng/CloudForms/1.0/2012-03-12.1/el6-ce/

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rpm -qa|grep aeolus
aeolus-conductor-doc-0.8.0-41.el6.noarch
rubygem-aeolus-cli-0.3.0-13.el6.noarch
aeolus-all-0.8.0-41.el6.noarch
aeolus-conductor-0.8.0-41.el6.noarch
rubygem-aeolus-image-0.3.0-12.el6.noarch
aeolus-configure-2.5.0-18.el6.noarch
aeolus-conductor-daemons-0.8.0-41.el6.noarch

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHEA-2012-0596.html