libpam-pgsql (aka pam_pgsql) 0.7 does not properly handle a NULL value returned by the password search query, which allows remote attackers to bypass authentication via a crafted password.
lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
seclists.org/oss-sec/2013/q1/86
seclists.org/oss-sec/2013/q1/99
sourceforge.net/p/pam-pgsql/bugs/13/
sourceforge.net/u/lvella/pam-pgsql/ci/9361f5970e5dd90a747319995b67c2f73b91448c/
www.securityfocus.com/bid/57440
exchange.xforce.ibmcloud.com/vulnerabilities/81363