Secunia Security Advisory – Ubuntu has issued an update for libapache2-mod-auth-pgsql. This fixes a vulnerability, which can be exploited by malicious people to compromise a vulnerable system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/42894/sa18348.txt
Source: https://packetstormsecurity.com/files/42894/Secunia-Security-Advisory-18348.html