yum info rubygem-json_pure
Loaded plugins: product-id, security, subscription-manager
Updating certificate-based repositories.
aeolus-brew-nightly                                 |  951 B     00:00     
Available Packages
Name        : rubygem-json_pure
Arch        : noarch
Version     : 1.5.1
Release     : 1.el6
Size        : 709 k
Repo        : aeolus-brew-nightly
Summary     : JSON Implementation for Ruby
URL         : http://flori.github.com/json
License     : GPLv2 or Ruby
Description : This is a JSON implementation in pure Ruby.

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

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-2012-0617.html