The remote host is missing an update to cvs announced via advisory DSA 486-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20486-1

Two vulnerabilities have been discovered and fixed in CVS: CVE-2004-0180 - Sebastian Krahmer discovered a vulnerability whereby a malicious CVS pserver could create arbitary files on the client system during an update or checkout operation, by supplying absolute pathnames in RCS diffs. CVE-2004-0405 - Derek Robert Price discovered a vulnerability whereby a CVS pserver could be abused by a malicious client to view the contents of certain files outside of the CVS root directory using relative pathnames containing ../. For the current stable distribution (woody) these problems have been fixed in version 1.11.1p1debian-9woody2. For the unstable distribution (sid), these problems will be fixed soon. We recommend that you update your cvs package.