Debian Security Advisory 1187-1: Jason Hoover discovered that migrationtools, a collection of scripts to migrate user data to LDAP creates several temporary files insecurely, which might lead to denial of service through a symlink attack.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/50556/dsa-1187-1.txt
Source: https://packetstormsecurity.com/files/50556/Debian-Linux-Security-Advisory-1187-1.html