CVE-2023-5870

Postgresql: role pg_signal_backend can signal certain superuser processes.

State: Published
Severity: 2.2 Low
Published: Dec 10, 2023
Updated: Mar 2, 2026
Reserved: Oct 31, 2023

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.

Scores

CVSS	Score	Vector	Source
3.1	2.2 Low	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L	redhat

Weaknesses

CWE-400 Uncontrolled Resource Consumption

Affected Products

Product	Versions
Red Hat Advanced Cluster Security 4.2Red Hat	4.2.4-6 and laterNot affected
Red Hat Advanced Cluster Security 4.2Red Hat	4.2.4-6 and laterNot affected
Red Hat Advanced Cluster Security 4.2Red Hat	4.2.4-7 and laterNot affected
Red Hat Advanced Cluster Security 4.2Red Hat	4.2.4-6 and laterNot affected
Red Hat Advanced Cluster Security 4.2Red Hat	4.2.4-7 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	8090020231114113712.a75119d5 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	8090020231128173330.a75119d5 and laterNot affected
Red Hat Enterprise Linux 8Red Hat	8090020231114113548.a75119d5 and laterNot affected
Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat	8020020231128165246.4cda2c84 and laterNot affected
Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceRed Hat	8020020231128165246.4cda2c84 and laterNot affected
Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsRed Hat	8020020231128165246.4cda2c84 and laterNot affected
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat	8040020231127153301.522a0ee4 and laterNot affected
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat	8040020231127154806.522a0ee4 and laterNot affected
Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceRed Hat	8040020231127153301.522a0ee4 and laterNot affected
Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceRed Hat	8040020231127154806.522a0ee4 and laterNot affected
Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsRed Hat	8040020231127153301.522a0ee4 and laterNot affected
Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsRed Hat	8040020231127154806.522a0ee4 and laterNot affected
Red Hat Enterprise Linux 8.6 Extended Update SupportRed Hat	8060020231114115246.ad008a3a and laterNot affected
Red Hat Enterprise Linux 8.6 Extended Update SupportRed Hat	8060020231128165328.ad008a3a and laterNot affected
Red Hat Enterprise Linux 8.8 Extended Update SupportRed Hat	8080020231114105206.63b34585 and laterNot affected
Red Hat Enterprise Linux 8.8 Extended Update SupportRed Hat	8080020231128165335.63b34585 and laterNot affected
Red Hat Enterprise Linux 8.8 Extended Update SupportRed Hat	8080020231113134015.63b34585 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:13.13-1.el9_3 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	9030020231120082734.rhel9 and laterNot affected
Red Hat Enterprise Linux 9.0 Extended Update SupportRed Hat	0:13.13-1.el9_0 and laterNot affected
Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat	0:13.13-1.el9_2 and laterNot affected
Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat	9020020231115020618.rhel9 and laterNot affected
Red Hat Software Collections for Red Hat Enterprise Linux 7Red Hat	0:12.17-1.el7 and laterNot affected
Red Hat Software Collections for Red Hat Enterprise Linux 7Red Hat	0:13.13-1.el7 and laterNot affected
RHACS-3.74-RHEL-8Red Hat	3.74.8-9 and laterNot affected
RHACS-3.74-RHEL-8Red Hat	3.74.8-9 and laterNot affected
RHACS-3.74-RHEL-8Red Hat	3.74.8-7 and laterNot affected
RHACS-3.74-RHEL-8Red Hat	3.74.8-9 and laterNot affected
RHACS-3.74-RHEL-8Red Hat	3.74.8-9 and laterNot affected
RHACS-4.1-RHEL-8Red Hat	4.1.6-6 and laterNot affected
RHACS-4.1-RHEL-8Red Hat	4.1.6-6 and laterNot affected
RHACS-4.1-RHEL-8Red Hat	4.1.6-6 and laterNot affected
RHACS-4.1-RHEL-8Red Hat	4.1.6-6 and laterNot affected
RHACS-4.1-RHEL-8Red Hat	4.1.6-6 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
Red Hat Enterprise Linux 7Red Hat
Red Hat Enterprise Linux 8Red Hat
Red Hat Enterprise Linux 8Red Hat
Red Hat Enterprise Linux 9Red Hat
Red Hat Software CollectionsRed Hat

References

RHSA-2023:7545vendor-advisory
RHSA-2023:7579vendor-advisory
RHSA-2023:7580vendor-advisory
RHSA-2023:7581vendor-advisory
RHSA-2023:7616vendor-advisory
RHSA-2023:7656vendor-advisory
RHSA-2023:7666vendor-advisory
RHSA-2023:7667vendor-advisory
RHSA-2023:7694vendor-advisory
RHSA-2023:7695vendor-advisory
RHSA-2023:7714vendor-advisory
RHSA-2023:7770vendor-advisory
RHSA-2023:7772vendor-advisory
RHSA-2023:7784vendor-advisory
RHSA-2023:7785vendor-advisory
RHSA-2023:7883vendor-advisory
RHSA-2023:7884vendor-advisory
RHSA-2023:7885vendor-advisory
RHSA-2024:0304vendor-advisory
RHSA-2024:0332vendor-advisory
RHSA-2024:0337vendor-advisory
https://access.redhat.com/security/cve/CVE-2023-5870vdb-entry
RHBZ#2247170issue-tracking
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://security.netapp.com/advisory/ntap-20240119-0003/
https://lists.debian.org/debian-lts-announce/2023/11/msg00007.html

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