The remote host is missing an update to pdfkit.framework announced via advisory DSA 979-1. Derek Noonburg has fixed several potential vulnerabilities in xpdf, the Portable Document Format (PDF) suite, which are also present in pdfkit.framework, the GNUstep framework for rendering PDF content. The old stable distribution (woody) does not contain pdfkit.framework packages.

For the stable distribution (sarge) these problems have been fixed in version 0.8-2sarge3. The unstable distribution (sid) is not affected by these problems. We recommend that you upgrade your pdfkit.framework package. https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20979-1