The remote host is missing an update to noweb announced via advisory DSA 323-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20323-1

Jakob Lell discovered a bug in the 'noroff' script included in noweb whereby a temporary file was created insecurely. During a review, several other instances of this problem were found and fixed. Any of these bugs could be exploited by a local user to overwrite arbitrary files owned by the user invoking the script. For the stable distribution (woody) these problems have been fixed in version 2.9a-7.3. For old stable distribution (potato) this problem has been fixed in version 2.9a-5.1. For the unstable distribution (sid) this problem will be fixed soon. We recommend that you update your noweb package.