The remote host is missing an update to imagemagick announced via advisory DSA 331-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20331-1

imagemagick's libmagick library, under certain circumstances, creates temporary files without taking appropriate security precautions. This vulnerability could be exploited by a local user to create or overwrite files with the privileges of another user who is invoking a program using this library. For the stable distribution (woody) this problem has been fixed in version 4:5.4.4.5-1woody1. For the unstable distribution (sid) this problem has been fixed in version 4:5.5.7-1. We recommend that you update your imagemagick package.