Red Hat Security Advisory 2017-2677-01 - PostgreSQL is an advanced object-relational database management system. The following packages have been upgraded to a later upstream version: rh-postgresql95-postgresql. Security Fix: It was found that authenticating to a PostgreSQL database account with an empty password was possible despite libpq's refusal to send an empty password. A remote attacker could potentially use this flaw to gain access to database accounts with empty passwords.
d6c03c3642ffe16040394c58a9c561fac4990d27509e6c49ad072962f56dc742