Debian Security Advisory 1859-1 – Rauli Kaksonen, Tero Rontti and Jukka Taimisto discovered several vulnerabilities in libxml2, a library for parsing and handling XML data files, which can lead to denial of service conditions or possibly arbitrary code execution in the application using the library.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/80252/dsa-1859-1.txt
Source: https://packetstormsecurity.com/files/80252/Debian-Linux-Security-Advisory-1859-1.html