The remote Debian host is missing a security-related update.
Several problems have been discovered in the TIFF library. The Common Vulnerabilities and Exposures project identifies the following issues : - CVE-2006-2193 SuSE discovered a buffer overflow in the conversion of TIFF files into PDF documents which could be exploited when tiff2pdf is used e.g. in a printer filter. - CVE-2006-2656 The tiffsplit command from the TIFF library contains a buffer overflow in the commandline handling which could be exploited when the program is executed automatically on unknown filenames.
Upgrade the tiff packages. For the old stable distribution (woody) this problem has been fixed in version 3.5.5-7woody2. For the stable distribution (sarge) this problem has been fixed in version 3.7.2-5.