Postgresql94 was updated to 9.4.13 to fix the following issues: * CVE-2017-7547: Further restrict visibility of pg_user_mappings.umoptions, to protect passwords stored as user mapping options. * CVE-2017-7546: Disallow empty passwords in all password-based authentication methods. * CVE-2017-7548: lo_put function ignores ACLs. The changelog for this release is here: https://www.postgresql.org/docs/9.4/static/release-9-4-13.html