A new security vunerability has been discovered in all versions of bind 4 and bind 8. bind 9 is imune to this. the cert security advisory has been issued at url http://www.cert.org/advisories/CA-2001-02.html With the bind updates at http://www.isc.org/ the new version of bind needs to be incorporated into an rpm update to correct this.
We released an errata yesterday. For some reason it has not yet shown up on the errata www page, but you can get it from ftp.redhat.com or up2date. *** This bug has been marked as a duplicate of 25209 ***