CVE-2009-3231

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-09-17 · updated 2026-06-16
Weakness: CWE-287

Description

The core server component in PostgreSQL 8.3 before 8.3.8 and 8.2 before 8.2.14, when using LDAP authentication with anonymous binds, allows remote attackers to bypass authentication via an empty password.

Affected products

Canonical Ubuntu Linux: 6.06, 8.04, 8.10, 9.04
Fedoraproject Fedora: 10, 11
Opensuse: from 10.3 through 11.1
PostgreSQL: from 8.2 before 8.2.14; from 8.3 before 8.3.8 — fixed in 8.2.14, 8.3.8
SUSE Linux Enterprise: 10.0-sp2, 11.0
SUSE Linux Enterprise Server: 9

How to fix

Upgrade to a fixed version: PostgreSQL 8.2.14, 8.3.8. Check the vendor advisory for mitigations.

References

http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00004.html
http://marc.info/?l=bugtraq&m=134124585221119&w=2
http://secunia.com/advisories/36660
http://secunia.com/advisories/36727
http://secunia.com/advisories/36800
http://secunia.com/advisories/36837
http://wiki.rpath.com/wiki/Advisories:rPSA-2010-0012
http://www.postgresql.org/docs/8.3/static/release-8-3-8.html
http://www.postgresql.org/support/security.html
http://www.securityfocus.com/archive/1/509917/100/0/threaded
http://www.securityfocus.com/bid/36314

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