iDEFENSE has reported a buffer overflow in xpdf, the portable document format (PDF) suite. Similar code is present in the PDF processing part of CUPS. A maliciously crafted PDF file could exploit this problem, resulting in the execution of arbitrary code.
For the stable distribution (woody) this problem has been fixed in version 1.1.14-5woody12.
In the unstable distribution (sid) CUPSYS does not use its own xpdf variant anymore but uses xpdf-utils.
We recommend that you upgrade your cups packages.