The intagg contrib module for PostgreSQL 8.0.0 and earlier allows attackers to cause a denial of service (crash) via crafted arrays.
https://exchange.xforce.ibmcloud.com/vulnerabilities/19185
http://www.securityfocus.com/bid/12417
http://www.redhat.com/support/errata/RHSA-2005-138.html
http://www.mandriva.com/security/advisories?name=MDKSA-2005:040
http://secunia.com/advisories/12948
http://marc.info/?l=bugtraq&m=110806034116082&w=2
http://archives.postgresql.org/pgsql-committers/2005-01/msg00401.php