CVE-2023-5870 Information

Description

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.

CVSS Vector

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

Reference

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/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-2023:7714 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

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

4.4