PostgreSQL is an advanced object-relational database management system . 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. Red Hat would like to thank the PostgreSQL project for reporting this issue. Upstream acknowledges Ben de Graaff, Jelte Fennema, and Jeroen van der Ham as the original reporters.