The remote host is missing an update to the system as announced in the referenced advisory FreeBSD-SA-04:07.cvs.asc

Upgrade your system to the appropriate stable release or security branch dated after the correction date https://secure1.securityspace.com/smysecure/catid.html?in=FreeBSD-SA-04:07.cvs.asc

The Concurrent Versions System (CVS) is a version control system. It may be used to access a repository locally, or to access a `remote repository' using a number of different methods. When accessing a remote repository, the target machine runs the CVS server to fulfill client requests. Two programming errors were discovered in which path names handled by CVS were not properly validated. In one case, CVE-2004-0180, the CVS client accepts absolute path names from the server when determining which files to update. In another case, CVE-2004-0405, the CVS server accepts relative path names from the client when determining which files to transmit, including those containing references to parent directories (`../').