The following errata for CentOS-2 have been built and uploaded to the centos mirror:
RHSA-2008:0003-05 Moderate: e2fsprogs security update
Files available: e2fsprogs-1.26-1.73.i386.rpm e2fsprogs-devel-1.26-1.73.i386.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