====== 1.8 Ensure updates, patches, and additional security software are installed (Not Scored) ===== Level 1 - Server Level 1 - Workstation =====Description===== Periodically patches are released for included software either due to security flaws or to include additional functionality. =====Rationale===== Newer patches may contain security enhancements that would not be available through the latest full update. As a result, it is recommended that the latest software patches be used to take advantage of the latest functionality. As with any software installation, organizations need to determine if a given update meets their requirements and verify the compatibility and supportability of any additional software against the update revision that is selected. =====Audit===== Run the following command and verify there are no updates or patches to install: # yum check-update =====Remediation===== Use your package manager to update all packages on the system according to site policy. The following command will install all available updates: # yum update =====Notes===== Site policy may mandate a testing period before install onto production systems for available updates.