PostgreSQL 8.1.0 through 8.1.2 allows authenticated database users to gain additional privileges via “knowledge of the backend protocol” using a crafted SET ROLE to other database users, a different vulnerability than CVE-2006-0678.
archives.postgresql.org/pgsql-announce/2006-02/msg00008.php
secunia.com/advisories/18890
securitytracker.com/id?1015636
www.kb.cert.org/vuls/id/567452
www.openpkg.org/security/OpenPKG-SA-2006.004-postgresql.html
www.postgresql.org/docs/8.1/static/release.html#RELEASE-8-1-3
www.securityfocus.com/archive/1/425037/100/0/threaded
www.securityfocus.com/bid/16649
www.vupen.com/english/advisories/2006/0605
exchange.xforce.ibmcloud.com/vulnerabilities/24718