The following errata for CentOS-2 have been built and uploaded the the centos mirror:
RHSA-2004:244-01 Updated Tripwire packages fix security flaw RHSA-2004:245-01 Updated httpd and mod_ssl packages fix minor Apache security vulnerabilities
Files available: tripwire-2.3.1-18.i386.rpm apache-1.3.27-8.ent.i386.rpm apache-devel-1.3.27-8.ent.i386.rpm apache-manual-1.3.27-8.ent.i386.rpm mod_ssl-2.8.12-4.i386.rpm
The easy way to make sure you are up to date with all the latest patches is to run: # yum update