CVE-2023-5869· NVD / CVE Program· CNA redhat

Postgresql: buffer overrun from integer overflow in array modification

Noroxi assessment

Priority: Monitor (action score 36/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 4.3% (FIRST EPSS); higher than 91.1% of all records.
Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
Fixed version: pg_repack (AlmaLinux:8) 1.4.6-3.module_el8.6.0+2758+4f4474df, 1.4.6-3.module_el8.6.0+3095+ee60d910, 1.4.6-3.module_el8.6.0+2760+1746ec94; pgaudit (AlmaLinux:8) 1.4.0-5.module_el8.6.0+2758+4f4474df, 1.4.0-5.module_el8.6.0+3094+eb237fb8, 1.7.0-1.module_el8.8.0+3487+43ec1b9f; postgres-decoderbufs (AlmaLinux:8) 0.10.0-2.module_el8.6.0+3094+eb237fb8, 0.10.0-2.module_el8.6.0+3095+ee60d910, 1.9.7-1.Final.module_el8.8.0+3487+43ec1b9f.

Low priority for now. Upgrade to pg_repack (AlmaLinux:8) 1.4.6-3.module_el8.6.0+2758+4f4474df, 1.4.6-3.module_el8.6.0+3095+ee60d910, 1.4.6-3.module_el8.6.0+2760+1746ec94; pgaudit (AlmaLinux:8) 1.4.0-5.module_el8.6.0+2758+4f4474df, 1.4.0-5.module_el8.6.0+3094+eb237fb8, 1.7.0-1.module_el8.8.0+3487+43ec1b9f; postgres-decoderbufs (AlmaLinux:8) 0.10.0-2.module_el8.6.0+3094+eb237fb8, 0.10.0-2.module_el8.6.0+3095+ee60d910, 1.9.7-1.Final.module_el8.8.0+3487+43ec1b9f or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A flaw was found in PostgreSQL that allows authenticated database users to execute arbitrary code through missing overflow checks during SQL array value modification. This issue exists due to an integer overflow during array modification where a remote user can trigger the overflow by providing specially crafted data. This enables the execution of arbitrary code on the target system, allowing users to write arbitrary bytes to memory and extensively read the server's memory.

HighCVSS 8.8 · v3.1—No exploit Fix available

Published: Dec 10, 2023
Updated: Jun 17, 2026
EPSS: 4.3% · 91th percentile
CWE: CWE-190

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 35 / 40 · 8.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 1 / 30 · 4.3%

CNA vs NVD score

NVD: 8.8
CNA · redhat: 8.8; agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
postgresql	postgresql	cpe:2.3:a:postgresql:postgresql
redhat	codeready linux builder eus	cpe:2.3:a:redhat:codeready_linux_builder_eus
redhat	codeready linux builder eus for power little endian eus	cpe:2.3:a:redhat:codeready_linux_builder_eus_for_power_little_endian_eus
redhat	codeready linux builder for arm64 eus	cpe:2.3:a:redhat:codeready_linux_builder_for_arm64_eus
redhat	codeready linux builder for ibm z systems eus	cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems_eus
redhat	codeready linux builder for power little endian eus	cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus
redhat	software collections	cpe:2.3:a:redhat:software_collections
redhat	enterprise linux	cpe:2.3:o:redhat:enterprise_linux
redhat	enterprise linux desktop	cpe:2.3:o:redhat:enterprise_linux_desktop
redhat	enterprise linux eus	cpe:2.3:o:redhat:enterprise_linux_eus
redhat	enterprise linux for arm 64	cpe:2.3:o:redhat:enterprise_linux_for_arm_64
redhat	enterprise linux for ibm z systems	cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems

and 9 more

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Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

postgresql postgresql11.0 and later · before 11.22
postgresql postgresql12.0 and later · before 12.17
postgresql postgresql13.0 and later · before 13.13
postgresql postgresql14.0 and later · before 14.10
postgresql postgresql15.0 and later · before 15.5
postgresql postgresql16.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

Red Hat Red Hat Advanced Cluster Security 4.2
- 4.2.4-6 and laternot affected · rpm
- 4.2.4-6 and laternot affected · rpm
- 4.2.4-7 and laternot affected · rpm
- 4.2.4-6 and laternot affected · rpm
- 4.2.4-7 and laternot affected · rpm
Red Hat Red Hat Enterprise Linux 6
- all versionsunknown
Red Hat Red Hat Enterprise Linux 7
- 0:9.2.24-9.el7_9 and laternot affected · rpm
Red Hat Red Hat Enterprise Linux 8
- 8090020231114113712.a75119d5 and laternot affected · rpm
- 8090020231128173330.a75119d5 and laternot affected · rpm
- 8090020231201202407.a75119d5 and laternot affected · rpm
- 8090020231114113548.a75119d5 and laternot affected · rpm
- all versionsunknown
Red Hat Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions
- 8010020231130170510.c27ad7f8 and laternot affected · rpm
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support
- 8020020231128165246.4cda2c84 and laternot affected · rpm
- 8020020231201202149.4cda2c84 and laternot affected · rpm
Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service
- 8020020231128165246.4cda2c84 and laternot affected · rpm
- 8020020231201202149.4cda2c84 and laternot affected · rpm
Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
- 8020020231128165246.4cda2c84 and laternot affected · rpm
- 8020020231201202149.4cda2c84 and laternot affected · rpm
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
- 8040020231127153301.522a0ee4 and laternot affected · rpm
- 8040020231127154806.522a0ee4 and laternot affected · rpm
- 8040020231127142440.522a0ee4 and laternot affected · rpm
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service
- 8040020231127153301.522a0ee4 and laternot affected · rpm
- 8040020231127154806.522a0ee4 and laternot affected · rpm
- 8040020231127142440.522a0ee4 and laternot affected · rpm
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
- 8040020231127153301.522a0ee4 and laternot affected · rpm
- 8040020231127154806.522a0ee4 and laternot affected · rpm
- 8040020231127142440.522a0ee4 and laternot affected · rpm
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support
- 8060020231114115246.ad008a3a and laternot affected · rpm
- 8060020231128165328.ad008a3a and laternot affected · rpm
- 8060020231201202249.ad008a3a and laternot affected · rpm

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

+96

Same product

postgresql: all records

Other highest-scoring records for the same primary product.

CVE-2017-7546PostgreSQL versions before 9.2.22, 9.3.18, 9.4.13, 9.5.8 and 9.6.4 are vulnerable to incorrect authentication flaw allowing remote attackers
57Plan
CVE-2019-9193In PostgreSQL 9.3 through 11.2, the "COPY TO/FROM PROGRAM" function allows superusers and users in the 'pg_execute_server_program' group to
55Plan
CVE-2020-25695A flaw was found in PostgreSQL versions before 13.1, before 12.5, before 11.10, before 10.15, before 9.6.20 and before 9.5.24.
49Plan

Published before and after this one in the same product

← EarlierCVE-2020-21469Aug 22, 2023 · An issue was discovered in PostgreSQL 12.2 allows attackers to cause a denial of service via repeatedly sending SIGHUP signals.
17Monitor
← EarlierCVE-2023-5868Dec 10, 2023 · Postgresql: memory disclosure in aggregate function calls
18Monitor
Later →CVE-2023-5870Dec 10, 2023 · Postgresql: role pg_signal_backend can signal certain superuser processes.
18Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
almalinux:pg_repack	1.4.6-3.module_el8.6.0+2760+1746ec94 · AlmaLinux:8	Package registry (OSV)
almalinux:pgaudit	1.5.0-1.module_el8.6.0+2760+1746ec94 · AlmaLinux:8	Package registry (OSV)
almalinux:postgres-decoderbufs	0.10.0-2.module_el8.6.0+2760+1746ec94 · AlmaLinux:8	Package registry (OSV)
almalinux:postgresql	13.13-1.module_el8.9.0+3692+8714f643 · AlmaLinux:8	Package registry (OSV)
almalinux:postgresql-contrib	13.13-1.module_el8.9.0+3692+8714f643 · AlmaLinux:8	Package registry (OSV)
almalinux:postgresql-docs	13.13-1.module_el8.9.0+3692+8714f643 · AlmaLinux:8	Package registry (OSV)
almalinux:postgresql-plperl	13.13-1.module_el8.9.0+3692+8714f643 · AlmaLinux:8	Package registry (OSV)
almalinux:postgresql-plpython3	13.13-1.module_el8.9.0+3692+8714f643 · AlmaLinux:8	Package registry (OSV)
almalinux:postgresql-pltcl	13.13-1.module_el8.9.0+3692+8714f643 · AlmaLinux:8	Package registry (OSV)
almalinux:postgresql-server	13.13-1.module_el8.9.0+3692+8714f643 · AlmaLinux:8	Package registry (OSV)
almalinux:postgresql-server-devel	13.13-1.module_el8.9.0+3692+8714f643 · AlmaLinux:8	Package registry (OSV)
almalinux:postgresql-static	13.13-1.module_el8.9.0+3692+8714f643 · AlmaLinux:8	Package registry (OSV)
alpine:postgresql14	14.10-r0 · Alpine:v3.15	Package registry (OSV)
alpine:postgresql15	15.5-r0 · Alpine:v3.17	Package registry (OSV)
alpine:postgresql16	16.1-r0 · Alpine:v3.19	Package registry (OSV)
debian:postgresql-11	11.22-0+deb10u1 · Debian:10	Package registry (OSV)
debian:postgresql-13	13.13-0+deb11u1 · Debian:11	Package registry (OSV)
debian:postgresql-15	15.5-0+deb12u1 · Debian:12	Package registry (OSV)
opensuse:postgresql	16-150400.4.9.2 · openSUSE:Leap 15.4	Package registry (OSV)
opensuse:postgresql11	11.22-1.1 · openSUSE:Tumbleweed	Package registry (OSV)
opensuse:postgresql12	12.17-150200.8.54.1 · openSUSE:Leap 15.4	Package registry (OSV)
opensuse:postgresql13	13.13-150200.5.50.1 · openSUSE:Leap 15.4	Package registry (OSV)
opensuse:postgresql14	14.10-150200.5.36.1 · openSUSE:Leap 15.4	Package registry (OSV)
opensuse:postgresql15	15.5-150200.5.19.1 · openSUSE:Leap 15.4	Package registry (OSV)
opensuse:postgresql16	16.1-150200.5.7.1 · openSUSE:Leap 15.4	Package registry (OSV)
opensuse:postgresql16-mini	16.1-150200.5.7.1 · openSUSE:Leap 15.4	Package registry (OSV)
opensuse:postgresql17	17.6-2.1 · openSUSE:Tumbleweed	Package registry (OSV)
red hat:postgresql	0:13.13-1.el9_0 · Red Hat:rhel_eus:9.0::appstream	Package registry (OSV)
red hat:postgresql-contrib	0:13.13-1.el9_0 · Red Hat:rhel_eus:9.0::appstream	Package registry (OSV)
red hat:postgresql-contrib-debuginfo	0:13.13-1.el9_0 · Red Hat:rhel_eus:9.0::appstream	Package registry (OSV)

+25

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Upstream acknowledges Pedro Gallegos as the original reporter.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-190 · Integer Overflow or Wraparound

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

Forced Integer OverflowCAPEC-92likelihood: High · High

ATT&CK techniques

—

Change log

Fix✗ → ✓Sep 28, 2026, 10:46 PM UTC

For records you follow, these changes also arrive as notifications. →

References

access.redhat.com/errata/RHSA-2024:0337

Show all references (19 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records