The remote host is missing an update to abcmidi announced via advisory DSA 1043-1. Erik Sjölund discovered that abcmidi-yaps, a translator for ABC music description files into PostScript, does not check the boundaries when reading in ABC music files resulting in buffer overflows. For the old stable distribution (woody) these problems have been fixed in version 17-1woody1.
For the stable distribution (sarge) these problems have been fixed in version 20050101-1sarge1. For the unstable distribution (sid) these problems will be fixed soon. We recommend that you upgrade your abcmidi-yaps package. https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201043-1