Debian Security Advisory 1311-1 – It was discovered that the PostgreSQL database performs insufficient validation of variables passed to privileged SQL statement called “security definers”, which could lead to SQL privilege escalation.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/57216/dsa-1311-1.txt
Source: https://packetstormsecurity.com/files/57216/Debian-Linux-Security-Advisory-1311-1.html