(RHSA-2013:0701) Moderate: ruby193-ruby, rubygem-json and rubygem-rdoc security update

Ruby is an extensible, interpreted, object-oriented, scripting language. It
has features to process text files and to do system management tasks.

A flaw in rubygem-json and ruby193-rubygem-json allowed remote attacks by
creating different types of malicious objects. For example, it could
initiate a denial of service attack through resource consumption by using a
JSON document to create arbitrary Ruby symbols, which were never garbage
collected. It could also be exploited to create internal objects which
could allow a SQL injection attack. (CVE-2013-0269)

It was found that documentation created by rubygem-rdoc and
ruby193-rubygem-rdoc was vulnerable to a cross-site scripting (XSS) attack.
If such documentation was accessible over a network, and a remote attacker
could trick a user into visiting a specially-crafted URL, it would lead to
arbitrary web script execution in the context of the user’s session. As
rubygem-rdoc and ruby193-rubygem-rdoc are used for creating documentation
for Ruby source files (such as classes, modules, and so on), it is not a
common scenario to make such documentation accessible over the network.
(CVE-2013-0256)

Red Hat would like to thank Ruby on Rails upstream for reporting
CVE-2013-0269, and Eric Hodel of RDoc upstream for reporting CVE-2013-0256.
Upstream acknowledges Thomas Hollstegge of Zweitag and Ben Murphy as the
original reporters of CVE-2013-0269, and Evgeny Ermakov as the original
reporter of CVE-2013-0256.

Users of Red Hat OpenShift Enterprise 1.1.3 are advised to upgrade to these
updated packages, which correct these issues.