The following errata for CentOS-2 have been built and uploaded to the centos mirror:

RHSA-2005:261-01 Low: glibc security update

Files available: glibc-2.2.4-32.20.i386.rpm glibc-common-2.2.4-32.20.i386.rpm glibc-devel-2.2.4-32.20.i386.rpm glibc-profile-2.2.4-32.20.i386.rpm nscd-2.2.4-32.20.i386.rpm glibc-2.2.4-32.20.i686.rpm

More details are available from the RedHat web site at https://rhn.redhat.com/errata/rh21as-errata.html

The easy way to make sure you are up to date with all the latest patches is to run: # yum update