Ruby on Rails 3.0.x before 3.0.4 does not ensure that arguments to the limit function specify integer values, which makes it easier for remote attackers to conduct SQL injection attacks via a non-numeric argument.
groups.google.com/group/rubyonrails-security/msg/4e19864cf6ad40ad?dmode=source&output=gplain
lists.fedoraproject.org/pipermail/package-announce/2011-April/057650.html
secunia.com/advisories/43278
securitytracker.com/id?1025063
weblog.rubyonrails.org/2011/2/8/new-releases-2-3-11-and-3-0-4
www.vupen.com/english/advisories/2011/0877
github.com/rails/rails/commit/354da43ab0a10b3b7b3f9cb0619aa562c3be8474