Debian Security Advisory 1114-1 – Andreas Seltenreich discovered a buffer overflow in hashcash, a postage payment scheme for email that is based on hash calculations, which could allow attackers to execute arbitrary code via specially crafted entries.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/48460/dsa-1114-1.txt
Source: https://packetstormsecurity.com/files/48460/Debian-Linux-Security-Advisory-1114-1.html