Debian Security Advisory 1269-1 – Tatsuya Kinoshita discovered that Lookup, a search interface to electronic dictionaries on emacsen, creates a temporary file in an insecure fashion when the ndeb-binary feature is used, which allows a local attacker to craft a symlink attack to overwrite arbitrary files.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/55244/dsa-1269-1.txt
Source: https://packetstormsecurity.com/files/55244/Debian-Linux-Security-Advisory-1269-1.html