PostgreSQL 7.4.x before 7.4.27, 8.0.x before 8.0.23, 8.1.x before 8.1.19, 8.2.x before 8.2.15, 8.3.x before 8.3.9, and 8.4.x before 8.4.2 does not properly manage session-local state during execution of an index function by a database superuser, which allows remote authenticated users to gain privileges via a table with crafted index functions, as demonstrated by functions that modify (1) search_path or (2) a prepared statement, a related issue to CVE-2007-6600 and CVE-2009-3230.
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg01056.html
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg01035.html
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9358
https://bugzilla.redhat.com/show_bug.cgi?id=546321
http://www.vupen.com/english/advisories/2010/1197
http://www.vupen.com/english/advisories/2009/3519
http://www.securitytracker.com/id?1023326
http://www.securityfocus.com/bid/37333
http://www.securityfocus.com/archive/1/509917/100/0/threaded
http://www.redhat.com/support/errata/RHSA-2010-0429.html
http://www.redhat.com/support/errata/RHSA-2010-0428.html
http://www.redhat.com/support/errata/RHSA-2010-0427.html
http://www.postgresql.org/support/security.html
http://www.postgresql.org/docs/current/static/release-8-4-2.html
http://www.postgresql.org/docs/current/static/release-8-3-9.html
http://www.postgresql.org/docs/current/static/release-8-2-15.html
http://www.postgresql.org/docs/current/static/release-8-1-19.html
http://www.postgresql.org/docs/current/static/release-8-0-23.html
http://www.postgresql.org/docs/current/static/release-7-4-27.html
http://www.mandriva.com/security/advisories?name=MDVSA-2009:333
http://wiki.rpath.com/wiki/Advisories:rPSA-2010-0012
http://secunia.com/advisories/39820
http://secunia.com/advisories/37663
http://marc.info/?l=bugtraq&m=134124585221119&w=2
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00007.html