Patch security issues in imported xpdf code.
Security: CAN-2005-3193
Security: http://www.kde.org/info/security/advisory-20051207-1.txt
Security: kpdf, the KDE pdf viewer and KOffice' pdf filter share code with
xpdf. xpdf contains multiple integer overflow vulnerabilities that
allow specially crafted pdf files, when opened, to overflow a heap
allocated buffer and execute arbitrary code.