The remote host is missing updates announced in advisory CLA-2004:886.
xpdf[1] is a viewer for Portable Document Format (PDF) files, whose code was used by many other projects, like gpdf[2], kpdf[3], koffice[4] and cups[5].
Chris Evans discovered several integer overflows vulnerabilities in the xpdf code which can be exploited remotely by a specially crafted PDF document and may lead to the execution of arbitrary code.
These vulnerabilities, CVE-2004-0888[6] for xpdf 2 and 3 and also CVE-2004-0889[7] for xpdf 3, were also inherited by gpdf, kpdf, koffice and cups.
Solution: The apt tool can be used to perform RPM package upgrades by running 'apt-get update' followed by 'apt-get upgrade'