The following ERRATA for SL 40 x86_64 are now available from:
ftp://ftp.scientificlinux.org/linux/scientific/40/x86_64/errata/SL/RPMS/

Synopsis:          Moderate: sudo security update
Advisory ID:       RHSA-2005:535-04
CVE Names:         CAN-2005-1993
 
   sudo-1.6.7p5-30.1.1.x86_64.rpm

Synopsis:          Important: zlib security update
Advisory ID:       RHSA-2005:569-01
CVE Names:         CAN-2005-2096

  zlib-1.2.1.2-1.1.i386.rpm
  zlib-1.2.1.2-1.1.x86_64.rpm
  zlib-devel-1.2.1.2-1.1.x86_64.rpm

-Connie Sieh