Postgresql: role pg_signal_backend can signal certain superuser processes.

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2023-5870
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-12-10 18:15:07 UTC
Updated2026-11-06 14:16:59 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 4.4 MEDIUM from [email protected]

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

Problem Types: CWE-400 | NVD-CWE-noinfo | CWE-400 Uncontrolled Resource Consumption

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary4.4MEDIUMCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
3.1[email protected]Secondary2.2LOWCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
3.1CNACVSS2.2LOWCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Postgresql Postgresql All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Red Hat Advanced Cluster Security 4.2 unaffected 4.2.4-6 * rpm Not specified
CNA Red Hat Red Hat Advanced Cluster Security 4.2 unaffected 4.2.4-6 * rpm Not specified
CNA Red Hat Red Hat Advanced Cluster Security 4.2 unaffected 4.2.4-7 * rpm Not specified
CNA Red Hat Red Hat Advanced Cluster Security 4.2 unaffected 4.2.4-6 * rpm Not specified
CNA Red Hat Red Hat Advanced Cluster Security 4.2 unaffected 4.2.4-7 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 8090020231114113712.a75119d5 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 8090020231128173330.a75119d5 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 8090020231114113548.a75119d5 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support unaffected 8020020231128165246.4cda2c84 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.2 Telecommunications Update Service unaffected 8020020231128165246.4cda2c84 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.2 Update Services For SAP Solutions unaffected 8020020231128165246.4cda2c84 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support unaffected 8040020231127153301.522a0ee4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support unaffected 8040020231127154806.522a0ee4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service unaffected 8040020231127153301.522a0ee4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service unaffected 8040020231127154806.522a0ee4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.4 Update Services For SAP Solutions unaffected 8040020231127153301.522a0ee4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.4 Update Services For SAP Solutions unaffected 8040020231127154806.522a0ee4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support unaffected 8060020231114115246.ad008a3a * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support unaffected 8060020231128165328.ad008a3a * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support unaffected 8080020231114105206.63b34585 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support unaffected 8080020231128165335.63b34585 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support unaffected 8080020231113134015.63b34585 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:13.13-1.el9_3 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 9030020231120082734.rhel9 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support unaffected 0:13.13-1.el9_0 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support unaffected 0:13.13-1.el9_2 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support unaffected 9020020231115020618.rhel9 * rpm Not specified
CNA Red Hat Red Hat Software Collections For Red Hat Enterprise Linux 7 unaffected 0:12.17-1.el7 * rpm Not specified
CNA Red Hat Red Hat Software Collections For Red Hat Enterprise Linux 7 unaffected 0:13.13-1.el7 * rpm Not specified
CNA Red Hat RHACS-3.74-RHEL-8 unaffected 3.74.8-9 * rpm Not specified
CNA Red Hat RHACS-3.74-RHEL-8 unaffected 3.74.8-9 * rpm Not specified
CNA Red Hat RHACS-3.74-RHEL-8 unaffected 3.74.8-7 * rpm Not specified
CNA Red Hat RHACS-3.74-RHEL-8 unaffected 3.74.8-9 * rpm Not specified
CNA Red Hat RHACS-3.74-RHEL-8 unaffected 3.74.8-9 * rpm Not specified
CNA Red Hat RHACS-4.1-RHEL-8 unaffected 4.1.6-6 * rpm Not specified
CNA Red Hat RHACS-4.1-RHEL-8 unaffected 4.1.6-6 * rpm Not specified
CNA Red Hat RHACS-4.1-RHEL-8 unaffected 4.1.6-6 * rpm Not specified
CNA Red Hat RHACS-4.1-RHEL-8 unaffected 4.1.6-6 * rpm Not specified
CNA Red Hat RHACS-4.1-RHEL-8 unaffected 4.1.6-6 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 6 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 7 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 8 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 8 Not specified Not specified
CNA Red Hat Red Hat Enterprise Linux 9 Not specified Not specified
CNA Red Hat Red Hat Software Collections Not specified Not specified

References

ReferenceSourceLinkTags
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
cve-details af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
PostgreSQL: CVE-2023-5870: Role "pg_signal_backend" can signal certain superuser processes af854a3a-2127-422b-91ae-364da2661108 www.postgresql.org Vendor Advisory
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
2247170 – (CVE-2023-5870) CVE-2023-5870 postgresql: Role pg_signal_backend can signal certain superuser processes. af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
December 2023 PostgreSQL Vulnerabilities in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com
PostgreSQL: PostgreSQL 16.1, 15.5, 14.10, 13.13, 12.17, and 11.22 Released! af854a3a-2127-422b-91ae-364da2661108 www.postgresql.org Release Notes
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Third Party Advisory
Red Hat af854a3a-2127-422b-91ae-364da2661108 access.redhat.com
lists.debian.org/debian-lts-announce/2023/11/msg00007.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Upstream acknowledges Hemanth Sandrana and Mahendrakar Srinivasarao as the original reporters. (en)

Additional Advisory Data

SourceTimeEvent
CNA2023-10-31T00:00:00.000ZReported to Red Hat.
CNA2023-11-09T00:00:00.000ZMade public.

Workarounds

CNA: 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.

Legacy QID Mappings

  • 161207 Oracle Enterprise Linux Security Update for postgresql:13 (ELSA-2023-7581)
  • 161232 Oracle Enterprise Linux Security Update for postgresql:15 (ELSA-2023-7785)
  • 161242 Oracle Enterprise Linux Security Update for postgresql (ELSA-2023-7784)
  • 161250 Oracle Enterprise Linux Security Update for postgresql:12 (ELSA-2023-7714)
  • 161253 Oracle Enterprise Linux Security Update for postgresql:15 (ELSA-2023-7884)
  • 199981 Ubuntu Security Notification for PostgreSQL Vulnerability (USN-6538-1)
  • 200053 Ubuntu Security Notification for PostgreSQL Vulnerabilities (USN-6538-2)
  • 242527 Red Hat Update for postgresql (RHSA-2023:7545)
  • 242534 Red Hat Update for postgresql:13 (RHSA-2023:7580)
  • 242536 Red Hat Update for postgresql:13 (RHSA-2023:7581)
  • 242537 Red Hat Update for postgresql:13 (RHSA-2023:7579)
  • 242540 Red Hat Update for postgresql (RHSA-2023:7616)
  • 242546 Red Hat Update for postgresql:12 (RHSA-2023:7666)
  • 242547 Red Hat Update for postgresql:12 (RHSA-2023:7667)
  • 242550 Red Hat Update for postgresql:13 (RHSA-2023:7695)
  • 242552 Red Hat Update for postgresql:12 (RHSA-2023:7694)
  • 242558 Red Hat Update for postgresql:12 (RHSA-2023:7714)
  • 242591 Red Hat Update for rh-postgresql12-postgresql (RHSA-2023:7770)
  • 242592 Red Hat Update for rh-postgresql13-postgresql (RHSA-2023:7772)
  • 242611 Red Hat Update for postgresql (RHSA-2023:7784)
  • 242614 Red Hat Update for postgresql:15 (RHSA-2023:7785)
  • 242634 Red Hat Update for postgresql:15 (RHSA-2023:7885)
  • 242636 Red Hat Update for postgresql:15 (RHSA-2023:7883)
  • 242657 Red Hat Update for postgresql:15 (RHSA-2023:7884)
  • 357052 Amazon Linux Security Advisory for postgresql : ALAS2POSTGRESQL12-2024-007
  • 357056 Amazon Linux Security Advisory for postgresql : ALAS2POSTGRESQL14-2024-004
  • 357060 Amazon Linux Security Advisory for postgresql : ALAS2POSTGRESQL13-2024-005
  • 379115 Alibaba Cloud Linux Security Update for postgresql:13 (ALINUX3-SA-2023:0139)
  • 503560 Alpine Linux Security Update for postgresql14
  • 503561 Alpine Linux Security Update for postgresql12
  • 503562 Alpine Linux Security Update for postgresql15
  • 505921 Alpine Linux Security Update for postgresql15
  • 505922 Alpine Linux Security Update for postgresql16
  • 506164 Alpine Linux Security Update for postgresql14
  • 6000321 Debian Security Update for postgresql-13 (DSA 5554-1)
  • 6000322 Debian Security Update for postgresql-15 (DSA 5553-1)
  • 6000323 Debian Security Update for postgresql-11 (DLA 3651-1)
  • 673520 EulerOS Security Update for postgresql (EulerOS-SA-2024-1289)
  • 691356 Free Berkeley Software Distribution (FreeBSD) Security Update for postgresql (bbb18fcb-7f0d-11ee-94b4-6cc21735f730)
  • 755251 SUSE Enterprise Linux Security Update for postgresql14 (SUSE-SU-2023:4418-1)
  • 755253 SUSE Enterprise Linux Security Update for postgresql, postgresql15, postgresql16 (SUSE-SU-2023:4425-1)
  • 755261 SUSE Enterprise Linux Security Update for postgresql13 (SUSE-SU-2023:4434-1)
  • 755262 SUSE Enterprise Linux Security Update for postgresql12 (SUSE-SU-2023:4433-1)
  • 755269 SUSE Enterprise Linux Security Update for postgresql13 (SUSE-SU-2023:4455-1)
  • 755270 SUSE Enterprise Linux Security Update for postgresql12 (SUSE-SU-2023:4454-1)
  • 755286 SUSE Enterprise Linux Security Update for postgresql14 (SUSE-SU-2023:4479-1)
  • 755294 SUSE Enterprise Linux Security Update for postgresql, postgresql15, postgresql16 (SUSE-SU-2023:4495-1)
  • 755603 SUSE Enterprise Linux Security Update for postgresql, postgresql15, postgresql16 (SUSE-SU-2024:0106-1)
  • 941485 AlmaLinux Security Update for postgresql:13 (ALSA-2023:7581)
  • 941501 AlmaLinux Security Update for postgresql (ALSA-2023:7784)
  • 941508 AlmaLinux Security Update for postgresql:12 (ALSA-2023:7714)
  • 941510 AlmaLinux Security Update for postgresql:15 (ALSA-2023:7785)
  • 941512 AlmaLinux Security Update for postgresql:15 (ALSA-2023:7884)
  • 961088 Rocky Linux Security Update for postgresql:13 (RLSA-2023:7581)

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