Debian Security Advisory 1352-1 – It was discovered that an integer overflow in the xpdf PDF viewer may lead to the execution of arbitrary code if a malformed PDF file is opened. pdfkit.framework includes a copy of the xpdf code and required an update as well.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/58361/dsa-1352-1.txt
Source: https://packetstormsecurity.com/files/58361/Debian-Linux-Security-Advisory-1352-1.html