The chkpass extension in PostgreSQL before 8.4.20, 9.0.x before 9.0.16, 9.1.x before 9.1.12, 9.2.x before 9.2.7, and 9.3.x before 9.3.3 does not properly check the return value of the crypt library function, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) via unspecified vectors.
https://support.apple.com/kb/HT6536
http://www.ubuntu.com/usn/USN-2120-1
http://www.postgresql.org/about/news/1506/
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.debian.org/security/2014/dsa-2865
http://www.debian.org/security/2014/dsa-2864
http://wiki.postgresql.org/wiki/20140220securityrelease
http://support.apple.com/kb/HT6448
http://rhn.redhat.com/errata/RHSA-2014-0469.html
http://rhn.redhat.com/errata/RHSA-2014-0249.html
http://rhn.redhat.com/errata/RHSA-2014-0221.html
http://rhn.redhat.com/errata/RHSA-2014-0211.html
http://lists.opensuse.org/opensuse-updates/2014-03/msg00038.html
http://lists.opensuse.org/opensuse-updates/2014-03/msg00018.html
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
http://archives.neohapsis.com/archives/bugtraq/2014-10/0103.html