Secunia Security Advisory – Gentoo has acknowledged some vulnerabilities in pdfkit and imagekits, which can be exploited by malicious people to compromise a vulnerable system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/60232/sa27308.txt
Source: https://packetstormsecurity.com/files/60232/Secunia-Security-Advisory-27308.html