CVE-2009-4136 [Medium] | Security Vulnerability in Postgresql

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.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	1.58%	3.64%	+2.07%
2	2025-03-30	4.31%	1.58%	-2.73%
3	2025-03-29	—	4.31%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

1.58%

3.64%

+2.07%

2025-03-30

4.31%

1.58%

-2.73%

2025-03-29

—

4.31%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
6.5	2.0	MEDIUM	`AV:N/AC:L/Au:S/C:P/I:P/A:P` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:S) A single authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:P) Partial integrity impact. Availability impact (A:P) Partial availability impact.	8.0	6.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

6.5

2.0

MEDIUM

AV:N/AC:L/Au:S/C:P/I:P/A:P Click to expand

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:S): A single authentication is required.
Confidentiality impact (C:P): Partial confidentiality impact.
Integrity impact (I:P): Partial integrity impact.
Availability impact (A:P): Partial availability impact.

8.0

6.4

[email protected]

OS Trackers for CVE-2009-4136

vendor	priority	summary	link
`gentoo`	normal	CVE-2009-4136: 1 GLSA(s) (201110-22), 3 atom(s) (dev-db/postgresql, dev-db/postgresql-base, dev-db/postgresql-server); latest impact normal.	https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2009-4136
`redhat`	low	—	https://access.redhat.com/security/cve/CVE-2009-4136
`ubuntu`	medium	CVE-2009-4136 medium priority: Ubuntu including 6 source packages (postgresql-7.4, postgresql-8.0, postgresql-8.1, postgresql-8.2, postgresql-8.3, postgresql-8.4), 60 status rows across 10 suites (dapper, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, oneiric, upstream): DNE 41, needs-triage 6, released 5, ignored 4, not-affected 4.	https://ubuntu.com/security/CVE-2009-4136

Vendor comments (NVD) for CVE-2009-4136

Red Hat (2010-05-20T00:00:00)

This issue was addressed in Red Hat Enterprise Linux 3 via https://rhn.redhat.com/errata/RHSA-2010-0427.html This issue was addressed in Red Hat Enterprise Linux 4 via https://rhn.redhat.com/errata/RHSA-2010-0428.html This issue was addressed in Red Hat Enterprise Linux 5 via https://rhn.redhat.com/errata/RHSA-2010-0429.html and https://rhn.redhat.com/errata/RHSA-2010-0430.html

Affected software / configurations for CVE-2009-4136

Vendor	Product	Version	Raw CPE
postgresql	postgresql	7.4.1	cpe:2.3:a:postgresql:postgresql:7.4.1:::::::*
postgresql	postgresql	7.4.2	cpe:2.3:a:postgresql:postgresql:7.4.2:::::::*
postgresql	postgresql	7.4.3	cpe:2.3:a:postgresql:postgresql:7.4.3:::::::*
postgresql	postgresql	7.4.4	cpe:2.3:a:postgresql:postgresql:7.4.4:::::::*
postgresql	postgresql	7.4.5	cpe:2.3:a:postgresql:postgresql:7.4.5:::::::*
postgresql	postgresql	7.4.6	cpe:2.3:a:postgresql:postgresql:7.4.6:::::::*
postgresql	postgresql	7.4.7	cpe:2.3:a:postgresql:postgresql:7.4.7:::::::*
postgresql	postgresql	7.4.8	cpe:2.3:a:postgresql:postgresql:7.4.8:::::::*
postgresql	postgresql	7.4.9	cpe:2.3:a:postgresql:postgresql:7.4.9:::::::*
postgresql	postgresql	7.4.10	cpe:2.3:a:postgresql:postgresql:7.4.10:::::::*
postgresql	postgresql	7.4.11	cpe:2.3:a:postgresql:postgresql:7.4.11:::::::*
postgresql	postgresql	7.4.12	cpe:2.3:a:postgresql:postgresql:7.4.12:::::::*
postgresql	postgresql	7.4.13	cpe:2.3:a:postgresql:postgresql:7.4.13:::::::*
postgresql	postgresql	7.4.14	cpe:2.3:a:postgresql:postgresql:7.4.14:::::::*
postgresql	postgresql	7.4.15	cpe:2.3:a:postgresql:postgresql:7.4.15:::::::*
postgresql	postgresql	7.4.16	cpe:2.3:a:postgresql:postgresql:7.4.16:::::::*
postgresql	postgresql	7.4.17	cpe:2.3:a:postgresql:postgresql:7.4.17:::::::*
postgresql	postgresql	7.4.18	cpe:2.3:a:postgresql:postgresql:7.4.18:::::::*
postgresql	postgresql	7.4.19	cpe:2.3:a:postgresql:postgresql:7.4.19:::::::*
postgresql	postgresql	7.4.20	cpe:2.3:a:postgresql:postgresql:7.4.20:::::::*
postgresql	postgresql	7.4.21	cpe:2.3:a:postgresql:postgresql:7.4.21:::::::*
postgresql	postgresql	7.4.22	cpe:2.3:a:postgresql:postgresql:7.4.22:::::::*
postgresql	postgresql	7.4.23	cpe:2.3:a:postgresql:postgresql:7.4.23:::::::*
postgresql	postgresql	7.4.24	cpe:2.3:a:postgresql:postgresql:7.4.24:::::::*
postgresql	postgresql	7.4.25	cpe:2.3:a:postgresql:postgresql:7.4.25:::::::*
postgresql	postgresql	7.4.26	cpe:2.3:a:postgresql:postgresql:7.4.26:::::::*
postgresql	postgresql	8.0.0	cpe:2.3:a:postgresql:postgresql:8.0.0:::::::*
postgresql	postgresql	8.0.1	cpe:2.3:a:postgresql:postgresql:8.0.1:::::::*
postgresql	postgresql	8.0.2	cpe:2.3:a:postgresql:postgresql:8.0.2:::::::*
postgresql	postgresql	8.0.3	cpe:2.3:a:postgresql:postgresql:8.0.3:::::::*
postgresql	postgresql	8.0.4	cpe:2.3:a:postgresql:postgresql:8.0.4:::::::*
postgresql	postgresql	8.0.5	cpe:2.3:a:postgresql:postgresql:8.0.5:::::::*
postgresql	postgresql	8.0.6	cpe:2.3:a:postgresql:postgresql:8.0.6:::::::*
postgresql	postgresql	8.0.7	cpe:2.3:a:postgresql:postgresql:8.0.7:::::::*
postgresql	postgresql	8.0.8	cpe:2.3:a:postgresql:postgresql:8.0.8:::::::*
postgresql	postgresql	8.0.9	cpe:2.3:a:postgresql:postgresql:8.0.9:::::::*
postgresql	postgresql	8.0.10	cpe:2.3:a:postgresql:postgresql:8.0.10:::::::*
postgresql	postgresql	8.0.11	cpe:2.3:a:postgresql:postgresql:8.0.11:::::::*
postgresql	postgresql	8.0.12	cpe:2.3:a:postgresql:postgresql:8.0.12:::::::*
postgresql	postgresql	8.0.13	cpe:2.3:a:postgresql:postgresql:8.0.13:::::::*
postgresql	postgresql	8.0.14	cpe:2.3:a:postgresql:postgresql:8.0.14:::::::*
postgresql	postgresql	8.0.15	cpe:2.3:a:postgresql:postgresql:8.0.15:::::::*
postgresql	postgresql	8.0.16	cpe:2.3:a:postgresql:postgresql:8.0.16:::::::*
postgresql	postgresql	8.0.17	cpe:2.3:a:postgresql:postgresql:8.0.17:::::::*
postgresql	postgresql	8.0.18	cpe:2.3:a:postgresql:postgresql:8.0.18:::::::*
postgresql	postgresql	8.0.19	cpe:2.3:a:postgresql:postgresql:8.0.19:::::::*
postgresql	postgresql	8.0.20	cpe:2.3:a:postgresql:postgresql:8.0.20:::::::*
postgresql	postgresql	8.0.21	cpe:2.3:a:postgresql:postgresql:8.0.21:::::::*
postgresql	postgresql	8.0.22	cpe:2.3:a:postgresql:postgresql:8.0.22:::::::*
postgresql	postgresql	8.1.0	cpe:2.3:a:postgresql:postgresql:8.1.0:::::::*
postgresql	postgresql	8.1.1	cpe:2.3:a:postgresql:postgresql:8.1.1:::::::*
postgresql	postgresql	8.1.2	cpe:2.3:a:postgresql:postgresql:8.1.2:::::::*
postgresql	postgresql	8.1.3	cpe:2.3:a:postgresql:postgresql:8.1.3:::::::*
postgresql	postgresql	8.1.4	cpe:2.3:a:postgresql:postgresql:8.1.4:::::::*
postgresql	postgresql	8.1.5	cpe:2.3:a:postgresql:postgresql:8.1.5:::::::*
postgresql	postgresql	8.1.6	cpe:2.3:a:postgresql:postgresql:8.1.6:::::::*
postgresql	postgresql	8.1.7	cpe:2.3:a:postgresql:postgresql:8.1.7:::::::*
postgresql	postgresql	8.1.8	cpe:2.3:a:postgresql:postgresql:8.1.8:::::::*
postgresql	postgresql	8.1.9	cpe:2.3:a:postgresql:postgresql:8.1.9:::::::*
postgresql	postgresql	8.1.10	cpe:2.3:a:postgresql:postgresql:8.1.10:::::::*
postgresql	postgresql	8.1.11	cpe:2.3:a:postgresql:postgresql:8.1.11:::::::*
postgresql	postgresql	8.1.12	cpe:2.3:a:postgresql:postgresql:8.1.12:::::::*
postgresql	postgresql	8.1.13	cpe:2.3:a:postgresql:postgresql:8.1.13:::::::*
postgresql	postgresql	8.1.14	cpe:2.3:a:postgresql:postgresql:8.1.14:::::::*
postgresql	postgresql	8.1.15	cpe:2.3:a:postgresql:postgresql:8.1.15:::::::*
postgresql	postgresql	8.1.16	cpe:2.3:a:postgresql:postgresql:8.1.16:::::::*
postgresql	postgresql	8.1.17	cpe:2.3:a:postgresql:postgresql:8.1.17:::::::*
postgresql	postgresql	8.1.18	cpe:2.3:a:postgresql:postgresql:8.1.18:::::::*
postgresql	postgresql	8.2	cpe:2.3:a:postgresql:postgresql:8.2:::::::*
postgresql	postgresql	8.2.1	cpe:2.3:a:postgresql:postgresql:8.2.1:::::::*
postgresql	postgresql	8.2.2	cpe:2.3:a:postgresql:postgresql:8.2.2:::::::*
postgresql	postgresql	8.2.3	cpe:2.3:a:postgresql:postgresql:8.2.3:::::::*
postgresql	postgresql	8.2.4	cpe:2.3:a:postgresql:postgresql:8.2.4:::::::*
postgresql	postgresql	8.2.5	cpe:2.3:a:postgresql:postgresql:8.2.5:::::::*
postgresql	postgresql	8.2.6	cpe:2.3:a:postgresql:postgresql:8.2.6:::::::*
postgresql	postgresql	8.2.7	cpe:2.3:a:postgresql:postgresql:8.2.7:::::::*
postgresql	postgresql	8.2.8	cpe:2.3:a:postgresql:postgresql:8.2.8:::::::*
postgresql	postgresql	8.2.9	cpe:2.3:a:postgresql:postgresql:8.2.9:::::::*
postgresql	postgresql	8.2.10	cpe:2.3:a:postgresql:postgresql:8.2.10:::::::*
postgresql	postgresql	8.2.11	cpe:2.3:a:postgresql:postgresql:8.2.11:::::::*

References for CVE-2009-4136

URL	Tags
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00007.html
http://marc.info/?l=bugtraq&m=134124585221119&w=2
http://osvdb.org/61039
http://secunia.com/advisories/37663
http://secunia.com/advisories/39820
http://wiki.rpath.com/wiki/Advisories:rPSA-2010-0012
http://www.mandriva.com/security/advisories?name=MDVSA-2009:333
http://www.postgresql.org/docs/current/static/release-7-4-27.html	Patch Vendor Advisory
http://www.postgresql.org/docs/current/static/release-8-0-23.html	Patch Vendor Advisory
http://www.postgresql.org/docs/current/static/release-8-1-19.html	Patch Vendor Advisory
http://www.postgresql.org/docs/current/static/release-8-2-15.html	Patch Vendor Advisory
http://www.postgresql.org/docs/current/static/release-8-3-9.html	Patch Vendor Advisory
http://www.postgresql.org/docs/current/static/release-8-4-2.html	Patch Vendor Advisory
http://www.postgresql.org/support/security.html	Vendor Advisory
http://www.redhat.com/support/errata/RHSA-2010-0427.html
http://www.redhat.com/support/errata/RHSA-2010-0428.html
http://www.redhat.com/support/errata/RHSA-2010-0429.html
http://www.securityfocus.com/archive/1/509917/100/0/threaded
http://www.securityfocus.com/bid/37333
http://www.securitytracker.com/id?1023326
http://www.vupen.com/english/advisories/2009/3519
http://www.vupen.com/english/advisories/2010/1197
https://bugzilla.redhat.com/show_bug.cgi?id=546321	Patch
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9358
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg01035.html
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg01056.html

URL

CVE-2009-4136

Exploit prediction scoring system (EPSS) score for CVE-2009-4136

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4136

Weakness enumeration for CVE-2009-4136

OS Trackers for CVE-2009-4136

Vendor comments (NVD) for CVE-2009-4136

Affected software / configurations for CVE-2009-4136

References for CVE-2009-4136