Debian Linux Security Advisory 1932-1 – It was discovered that incorrect pointer handling in the purple library, an internal component of the multi-protocol instant messaging client Pidgin, could lead to denial of service or the execution of arbitrary code through malformed contact requests.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/82645/dsa-1932-1.txt
Source: https://packetstormsecurity.com/files/82645/Debian-Linux-Security-Advisory-1932-1.html