CVE-2013-0255 [Medium] | Input Validation Bypass in Postgresql

PostgreSQL 9.2.x before 9.2.3, 9.1.x before 9.1.8, 9.0.x before 9.0.12, 8.4.x before 8.4.16, and 8.3.x before 8.3.23 does not properly declare the enum_recv function in backend/utils/adt/enum.c, which causes it to be invoked with incorrect arguments and allows remote authenticated users to cause a denial of service (server crash) or read sensitive process memory via a crafted SQL command, which triggers an array index error and an out-of-bounds read.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	3.66%	3.59%	-0.07%
2	2026-02-01	3.09%	3.66%	+0.57%
3	2025-03-30	—	3.09%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

3.66%

3.59%

-0.07%

2026-02-01

3.09%

3.66%

+0.57%

2025-03-30

—

3.09%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
6.8	2.0	MEDIUM	`AV:N/AC:L/Au:S/C:N/I:N/A:C` 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:N) No confidentiality impact. Integrity impact (I:N) No integrity impact. Availability impact (A:C) Complete availability impact.	8.0	6.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

6.8

2.0

MEDIUM

AV:N/AC:L/Au:S/C:N/I:N/A:C 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:N): No confidentiality impact.
Integrity impact (I:N): No integrity impact.
Availability impact (A:C): Complete availability impact.

8.0

6.9

[email protected]

OS Trackers for CVE-2013-0255

vendor	priority	summary	link
`gentoo`	normal	CVE-2013-0255: 1 GLSA(s) (201408-15), 1 atom(s) (dev-db/postgresql-server); latest impact normal.	https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-0255
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2013-0255
`ubuntu`	medium	CVE-2013-0255 medium priority: Ubuntu including 4 source packages (postgresql-8.2, postgresql-8.3, postgresql-8.4, postgresql-9.1), 28 status rows across 7 suites (hardy, lucid, oneiric, precise, quantal, raring, upstream): DNE 15, released 9, ignored 2, needs-triage 1, not-affected 1.	https://ubuntu.com/security/CVE-2013-0255

Affected software / configurations for CVE-2013-0255

Vendor	Product	Version	Raw CPE
postgresql	postgresql	8.3	cpe:2.3:a:postgresql:postgresql:8.3:::::::*
postgresql	postgresql	8.3.1	cpe:2.3:a:postgresql:postgresql:8.3.1:::::::*
postgresql	postgresql	8.3.2	cpe:2.3:a:postgresql:postgresql:8.3.2:::::::*
postgresql	postgresql	8.3.3	cpe:2.3:a:postgresql:postgresql:8.3.3:::::::*
postgresql	postgresql	8.3.4	cpe:2.3:a:postgresql:postgresql:8.3.4:::::::*
postgresql	postgresql	8.3.5	cpe:2.3:a:postgresql:postgresql:8.3.5:::::::*
postgresql	postgresql	8.3.6	cpe:2.3:a:postgresql:postgresql:8.3.6:::::::*
postgresql	postgresql	8.3.7	cpe:2.3:a:postgresql:postgresql:8.3.7:::::::*
postgresql	postgresql	8.3.8	cpe:2.3:a:postgresql:postgresql:8.3.8:::::::*
postgresql	postgresql	8.3.9	cpe:2.3:a:postgresql:postgresql:8.3.9:::::::*
postgresql	postgresql	8.3.10	cpe:2.3:a:postgresql:postgresql:8.3.10:::::::*
postgresql	postgresql	8.3.11	cpe:2.3:a:postgresql:postgresql:8.3.11:::::::*
postgresql	postgresql	8.3.12	cpe:2.3:a:postgresql:postgresql:8.3.12:::::::*
postgresql	postgresql	8.3.13	cpe:2.3:a:postgresql:postgresql:8.3.13:::::::*
postgresql	postgresql	8.3.14	cpe:2.3:a:postgresql:postgresql:8.3.14:::::::*
postgresql	postgresql	8.3.15	cpe:2.3:a:postgresql:postgresql:8.3.15:::::::*
postgresql	postgresql	8.3.16	cpe:2.3:a:postgresql:postgresql:8.3.16:::::::*
postgresql	postgresql	8.3.17	cpe:2.3:a:postgresql:postgresql:8.3.17:::::::*
postgresql	postgresql	8.3.18	cpe:2.3:a:postgresql:postgresql:8.3.18:::::::*
postgresql	postgresql	8.3.19	cpe:2.3:a:postgresql:postgresql:8.3.19:::::::*
postgresql	postgresql	8.3.20	cpe:2.3:a:postgresql:postgresql:8.3.20:::::::*
postgresql	postgresql	8.3.21	cpe:2.3:a:postgresql:postgresql:8.3.21:::::::*
postgresql	postgresql	8.3.22	cpe:2.3:a:postgresql:postgresql:8.3.22:::::::*
postgresql	postgresql	8.4	cpe:2.3:a:postgresql:postgresql:8.4:::::::*
postgresql	postgresql	8.4.1	cpe:2.3:a:postgresql:postgresql:8.4.1:::::::*
postgresql	postgresql	8.4.2	cpe:2.3:a:postgresql:postgresql:8.4.2:::::::*
postgresql	postgresql	8.4.3	cpe:2.3:a:postgresql:postgresql:8.4.3:::::::*
postgresql	postgresql	8.4.4	cpe:2.3:a:postgresql:postgresql:8.4.4:::::::*
postgresql	postgresql	8.4.5	cpe:2.3:a:postgresql:postgresql:8.4.5:::::::*
postgresql	postgresql	8.4.6	cpe:2.3:a:postgresql:postgresql:8.4.6:::::::*
postgresql	postgresql	8.4.7	cpe:2.3:a:postgresql:postgresql:8.4.7:::::::*
postgresql	postgresql	8.4.8	cpe:2.3:a:postgresql:postgresql:8.4.8:::::::*
postgresql	postgresql	8.4.9	cpe:2.3:a:postgresql:postgresql:8.4.9:::::::*
postgresql	postgresql	8.4.10	cpe:2.3:a:postgresql:postgresql:8.4.10:::::::*
postgresql	postgresql	8.4.11	cpe:2.3:a:postgresql:postgresql:8.4.11:::::::*
postgresql	postgresql	8.4.12	cpe:2.3:a:postgresql:postgresql:8.4.12:::::::*
postgresql	postgresql	8.4.13	cpe:2.3:a:postgresql:postgresql:8.4.13:::::::*
postgresql	postgresql	8.4.14	cpe:2.3:a:postgresql:postgresql:8.4.14:::::::*
postgresql	postgresql	8.4.15	cpe:2.3:a:postgresql:postgresql:8.4.15:::::::*
postgresql	postgresql	9.0	cpe:2.3:a:postgresql:postgresql:9.0:::::::*
postgresql	postgresql	9.0.1	cpe:2.3:a:postgresql:postgresql:9.0.1:::::::*
postgresql	postgresql	9.0.2	cpe:2.3:a:postgresql:postgresql:9.0.2:::::::*
postgresql	postgresql	9.0.3	cpe:2.3:a:postgresql:postgresql:9.0.3:::::::*
postgresql	postgresql	9.0.4	cpe:2.3:a:postgresql:postgresql:9.0.4:::::::*
postgresql	postgresql	9.0.5	cpe:2.3:a:postgresql:postgresql:9.0.5:::::::*
postgresql	postgresql	9.0.6	cpe:2.3:a:postgresql:postgresql:9.0.6:::::::*
postgresql	postgresql	9.0.7	cpe:2.3:a:postgresql:postgresql:9.0.7:::::::*
postgresql	postgresql	9.0.8	cpe:2.3:a:postgresql:postgresql:9.0.8:::::::*
postgresql	postgresql	9.0.9	cpe:2.3:a:postgresql:postgresql:9.0.9:::::::*
postgresql	postgresql	9.0.10	cpe:2.3:a:postgresql:postgresql:9.0.10:::::::*
postgresql	postgresql	9.0.11	cpe:2.3:a:postgresql:postgresql:9.0.11:::::::*
postgresql	postgresql	9.1	cpe:2.3:a:postgresql:postgresql:9.1:::::::*
postgresql	postgresql	9.1.1	cpe:2.3:a:postgresql:postgresql:9.1.1:::::::*
postgresql	postgresql	9.1.2	cpe:2.3:a:postgresql:postgresql:9.1.2:::::::*
postgresql	postgresql	9.1.3	cpe:2.3:a:postgresql:postgresql:9.1.3:::::::*
postgresql	postgresql	9.1.4	cpe:2.3:a:postgresql:postgresql:9.1.4:::::::*
postgresql	postgresql	9.1.5	cpe:2.3:a:postgresql:postgresql:9.1.5:::::::*
postgresql	postgresql	9.1.6	cpe:2.3:a:postgresql:postgresql:9.1.6:::::::*
postgresql	postgresql	9.1.7	cpe:2.3:a:postgresql:postgresql:9.1.7:::::::*

References for CVE-2013-0255

URL	Tags
http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098586.html
http://lists.opensuse.org/opensuse-updates/2013-02/msg00059.html
http://lists.opensuse.org/opensuse-updates/2013-02/msg00060.html
http://osvdb.org/89935
http://rhn.redhat.com/errata/RHSA-2013-1475.html
http://secunia.com/advisories/51923	Vendor Advisory
http://secunia.com/advisories/52819
http://securitytracker.com/id?1028092
http://www.debian.org/security/2013/dsa-2630
http://www.mandriva.com/security/advisories?name=MDVSA-2013:142
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.postgresql.org/docs/8.3/static/release-8-3-23.html
http://www.postgresql.org/docs/8.4/static/release-8-4-16.html
http://www.postgresql.org/docs/9.0/static/release-9-0-12.html
http://www.postgresql.org/docs/9.1/static/release-9-1-8.html
http://www.postgresql.org/docs/9.2/static/release-9-2-3.html
http://www.securityfocus.com/bid/57844
http://www.ubuntu.com/usn/USN-1717-1
https://blogs.oracle.com/sunsecurity/entry/cve_2013_0255_array_index
https://bugzilla.redhat.com/show_bug.cgi?id=907892
https://exchange.xforce.ibmcloud.com/vulnerabilities/81917

URL

CVE-2013-0255

Exploit prediction scoring system (EPSS) score for CVE-2013-0255

Common vulnerability scoring system (CVSS) metrics for CVE-2013-0255

Weakness enumeration for CVE-2013-0255

OS Trackers for CVE-2013-0255

Affected software / configurations for CVE-2013-0255

References for CVE-2013-0255