CentOS Errata and Security Advisory CESA-2005:799-01
Ruby is an interpreted scripting language for object-oriented programming.
A bug was found in the way ruby handles eval statements. It is possible for a malicious script to call eval in such a way that can allow the bypass of certain safe-level restrictions. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2005-2337 to this issue.
Users of Ruby should update to these erratum packages, which contain a backported patch and are not vulnerable to this issue.
Merged security bulletin from advisories: http://lists.centos.org/pipermail/centos-announce/2005-October/012282.html
Affected packages: irb ruby ruby-devel ruby-docs ruby-libs ruby-tcltk
Upstream details at: https://rhn.redhat.com/errata/rh21as-errata.html