[CentOS] central patch list

Is there a list somewhere of available updates for a
given CentOS release?  Something like this:
https://rhn.redhat.com/errata/rhel4ws-errata.html

Ideally I would like a something like:
Bug         Description            Link to update
1111        kernel blah,etc        http://some.rpm.com/1111.rpm

-Mark
-- 
Mark Belanger
LTX Corporation