The following errata for CentOS-2 have been built and uploaded the the centos mirror
RHSA-2004:233-01 Updated cvs package fixes security issues RHSA-2004:234-01 Updated Ethereal packages fix security issues RHSA-2004:236-01 Updated krb5 packages available
Files available: cvs-1.11.1p1-16.i386.rpm ethereal-0.10.3-0.AS21.3.i386.rpm ethereal-gnome-0.10.3-0.AS21.3.i386.rpm krb5-devel-1.2.2-27.i386.rpm krb5-libs-1.2.2-27.i386.rpm krb5-server-1.2.2-27.i386.rpm krb5-workstation-1.2.2-27.i386.rpm
The easy way to make sure you are up to date with all the latest patches is to run: # yum update