Debian Linux Security Advisory 1953-1 – Jan Lieskovsky discovered an error in expat, an XML parsing C library, when parsing certain UTF-8 sequences, which can be exploited to crash an application using the library.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/83929/dsa-1953-1.txt
Source: https://packetstormsecurity.com/files/83929/Debian-Linux-Security-Advisory-1953-1.html