Vulnerability Report

CVE-2023-5870

Title: Postgresql Denial of Service (DoS)

Denial of Service (DoS)

Proof Of Concept

No public PoC currently indexed for CVE-2023-5870.

CWE Category CWE-400
Published Date Dec 10, 2023
Modified Date Nov 04, 2025
Exploit Status Not Found
Score 2.2 CVSS v3.1
Exploit Probability (EPSS)
2.56%

Vulnerability Summary

CVE-2023-5870: A flaw was found in PostgreSQL involving the pg_cancel_backend role that signals background workers, including the logical replication launcher, autovacuum workers, and the autovacuum launcher. Successful exploitation requires a non-core extension with a less-resilient background worker and would affect that specific background worker only. This issue may allow a remote high privileged user to launch a denial of service (DoS) attack.

Impacted Vendors

P
postgresql 1
R
redhat 6
A
anynines 1

Reference Links

https://access.redhat.com/errata/RHSA-2023:7545 https://access.redhat.com/errata/RHSA-2023:7579 https://access.redhat.com/errata/RHSA-2023:7580 https://access.redhat.com/errata/RHSA-2023:7581 https://access.redhat.com/errata/RHSA-2023:7616 https://access.redhat.com/errata/RHSA-2023:7656 https://access.redhat.com/errata/RHSA-2023:7666 https://access.redhat.com/errata/RHSA-2023:7667 https://access.redhat.com/errata/RHSA-2023:7694 https://access.redhat.com/errata/RHSA-2023:7695 https://access.redhat.com/errata/RHSA-2023:7714 https://access.redhat.com/errata/RHSA-2023:7770 https://access.redhat.com/errata/RHSA-2023:7772 https://access.redhat.com/errata/RHSA-2023:7784 https://access.redhat.com/errata/RHSA-2023:7785 https://access.redhat.com/errata/RHSA-2023:7883 https://access.redhat.com/errata/RHSA-2023:7884 https://access.redhat.com/errata/RHSA-2023:7885 https://access.redhat.com/errata/RHSA-2024:0304 https://access.redhat.com/errata/RHSA-2024:0332 https://access.redhat.com/errata/RHSA-2024:0337 https://access.redhat.com/security/cve/CVE-2023-5870 https://bugzilla.redhat.com/show_bug.cgi?id=2247170 https://www.postgresql.org/about/news/postgresql-161-155-1410-1313-1217-and-1122-released-2749/ https://www.postgresql.org/support/security/CVE-2023-5870/ https://access.redhat.com/errata/RHSA-2023:7545 https://access.redhat.com/errata/RHSA-2023:7579 https://access.redhat.com/errata/RHSA-2023:7580 https://access.redhat.com/errata/RHSA-2023:7581 https://access.redhat.com/errata/RHSA-2023:7616 https://access.redhat.com/errata/RHSA-2023:7656 https://access.redhat.com/errata/RHSA-2023:7666 https://access.redhat.com/errata/RHSA-2023:7667 https://access.redhat.com/errata/RHSA-2023:7694 https://access.redhat.com/errata/RHSA-2023:7695 https://access.redhat.com/errata/RHSA-2023:7714 https://access.redhat.com/errata/RHSA-2023:7770 https://access.redhat.com/errata/RHSA-2023:7772 https://access.redhat.com/errata/RHSA-2023:7784 https://access.redhat.com/errata/RHSA-2023:7785 https://access.redhat.com/errata/RHSA-2023:7883 https://access.redhat.com/errata/RHSA-2023:7884 https://access.redhat.com/errata/RHSA-2023:7885 https://access.redhat.com/errata/RHSA-2024:0304 https://access.redhat.com/errata/RHSA-2024:0332 https://access.redhat.com/errata/RHSA-2024:0337 https://access.redhat.com/security/cve/CVE-2023-5870 https://bugzilla.redhat.com/show_bug.cgi?id=2247170 https://lists.debian.org/debian-lts-announce/2023/11/msg00007.html https://security.netapp.com/advisory/ntap-20240119-0003/ https://www.postgresql.org/about/news/postgresql-161-155-1410-1313-1217-and-1122-released-2749/ https://www.postgresql.org/support/security/CVE-2023-5870/
CVSS v3.1
Source Entity [email protected]
Severity LOW
2.2
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
4.4
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2023-5870 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L

Affected Stack

No specific products linked.