The remote host is missing an update to apache2 announced via advisory USN-731-1. For details, please visit the referenced security advisories.

The problem can be corrected by upgrading your system to the following package versions: Ubuntu 6.06 LTS: apache2-common 2.0.55-4ubuntu2.4 apache2-mpm-perchild 2.0.55-4ubuntu2.4 apache2-mpm-prefork 2.0.55-4ubuntu2.4 apache2-mpm-worker 2.0.55-4ubuntu2.4 Ubuntu 7.10: apache2-mpm-event 2.2.4-3ubuntu0.2 apache2-mpm-perchild 2.2.4-3ubuntu0.2 apache2-mpm-prefork 2.2.4-3ubuntu0.2 apache2-mpm-worker 2.2.4-3ubuntu0.2 apache2.2-common 2.2.4-3ubuntu0.2 Ubuntu 8.04 LTS: apache2-mpm-event 2.2.8-1ubuntu0.4 apache2-mpm-perchild 2.2.8-1ubuntu0.4 apache2-mpm-prefork 2.2.8-1ubuntu0.4 apache2-mpm-worker 2.2.8-1ubuntu0.4 apache2.2-common 2.2.8-1ubuntu0.4 In general, a standard system upgrade is sufficient to effect the necessary changes. https://secure1.securityspace.com/smysecure/catid.html?in=USN-731-1