The following FASTBUGS have been uploaded to

http://ftp.scientificlinux.org/linux/scientific/5x/i386/updates/fastbugs/
http://ftp.scientificlinux.org/linux/scientific/5x/x86_64/updates/fastbugs/

i386:
nss_ldap-253-51.el5_9.1.i386.rpm

x86_64:
nss_ldap-253-51.el5_9.1.i386.rpm
nss_ldap-253-51.el5_9.1.x86_64.rpm