CVE-2023-5870

Postgresql: role pg_signal_backend can signal certain superuser processes.

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.

Remediation

Workaround:

  • Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Category

2.2
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.48%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory postgresql.org
Affected: Red Hat Red Hat Advanced Cluster Security 4.2
Affected: Red Hat Red Hat Advanced Cluster Security 4.2
Affected: Red Hat Red Hat Advanced Cluster Security 4.2
Affected: Red Hat Red Hat Advanced Cluster Security 4.2
Affected: Red Hat Red Hat Advanced Cluster Security 4.2
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support
Affected: Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service
Affected: Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
Affected: Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Affected: Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Affected: Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service
Affected: Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service
Affected: Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
Affected: Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
Affected: Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support
Affected: Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support
Affected: Red Hat Red Hat Software Collections for Red Hat Enterprise Linux 7
Affected: Red Hat Red Hat Software Collections for Red Hat Enterprise Linux 7
Affected: Red Hat RHACS-3.74-RHEL-8
Affected: Red Hat RHACS-3.74-RHEL-8
Affected: Red Hat RHACS-3.74-RHEL-8
Affected: Red Hat RHACS-3.74-RHEL-8
Affected: Red Hat RHACS-3.74-RHEL-8
Affected: Red Hat RHACS-4.1-RHEL-8
Affected: Red Hat RHACS-4.1-RHEL-8
Affected: Red Hat RHACS-4.1-RHEL-8
Affected: Red Hat RHACS-4.1-RHEL-8
Affected: Red Hat RHACS-4.1-RHEL-8
Affected: Red Hat Red Hat Enterprise Linux 6
Affected: Red Hat Red Hat Enterprise Linux 7
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Software Collections
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2023:7545 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2023:7579 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2023:7580 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2023:7581 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2023:7616 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2023:7656 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2023:7666 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2023:7667 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2023:7694 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2023:7695 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2023:7714 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2023:7770 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2023:7772 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2023:7784 vendor advisory
https://access.redhat.com/errata/RHSA-2023:7785 vendor advisory
https://access.redhat.com/errata/RHSA-2023:7883 vendor advisory
https://access.redhat.com/errata/RHSA-2023:7884 vendor advisory
https://access.redhat.com/errata/RHSA-2023:7885 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0304 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0332 vendor advisory
https://access.redhat.com/errata/RHSA-2024:0337 vendor advisory
https://access.redhat.com/security/cve/CVE-2023-5870 third party advisory vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=2247170 issue tracking
https://www.postgresql.org/about/news/postgresql-161-155-1410-1313-1217-and-1122-released-2749/ release notes
https://www.postgresql.org/support/security/CVE-2023-5870/ vendor advisory
https://security.netapp.com/advisory/ntap-20240119-0003/

Frequently Asked Questions

What is the severity of CVE-2023-5870?
CVE-2023-5870 has been scored as a low severity vulnerability.
How to fix CVE-2023-5870?
As a workaround for remediating CVE-2023-5870: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Is CVE-2023-5870 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-5870 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-5870?
CVE-2023-5870 affects Red Hat Red Hat Advanced Cluster Security 4.2, Red Hat Red Hat Advanced Cluster Security 4.2, Red Hat Red Hat Advanced Cluster Security 4.2, Red Hat Red Hat Advanced Cluster Security 4.2, Red Hat Red Hat Advanced Cluster Security 4.2, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service, Red Hat Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions, Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service, Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service, Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions, Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions, Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support, Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support, Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support, Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support, Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support, Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support, Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support, Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support, Red Hat Red Hat Software Collections for Red Hat Enterprise Linux 7, Red Hat Red Hat Software Collections for Red Hat Enterprise Linux 7, Red Hat RHACS-3.74-RHEL-8, Red Hat RHACS-3.74-RHEL-8, Red Hat RHACS-3.74-RHEL-8, Red Hat RHACS-3.74-RHEL-8, Red Hat RHACS-3.74-RHEL-8, Red Hat RHACS-4.1-RHEL-8, Red Hat RHACS-4.1-RHEL-8, Red Hat RHACS-4.1-RHEL-8, Red Hat RHACS-4.1-RHEL-8, Red Hat RHACS-4.1-RHEL-8, Red Hat Red Hat Enterprise Linux 6, Red Hat Red Hat Enterprise Linux 7, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Software Collections.
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