(RHSA-2013:0201) Critical: rubygem-activesupport security update

Ruby on Rails is a model–view–controller (MVC) framework for web
application development. Active Support provides support and utility
classes used by the Ruby on Rails framework.

A flaw was found in the way Active Support performed the parsing of JSON
requests by translating them to YAML. A remote attacker could use this flaw
to execute arbitrary code with the privileges of a Ruby on Rails
application, perform SQL injection attacks, or bypass the authentication
using a specially-created JSON request. (CVE-2013-0333)

Red Hat would like to thank Ruby on Rails upstream for reporting this
issue. Upstream acknowledges Lawrence Pit of Mirror42 as the original
reporter.

Users of Red Hat Subscription Asset Manager are advised to upgrade to this
updated package, which resolves this issue. Katello must be restarted
(“service katello restart”) for this update to take effect.