Record status Published
Identifier year (not publication year) 2023
Source publication Dec 10, 2023
Source updated Mar 2, 2026
Imported by cveboard Oct 24, 2026
CNA source text (English) Postgresql: role pg_signal_backend can signal certain superuser processes.
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.
Scoped product and version facts Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Red Hat Advanced Cluster Security 4.2
Vendor Red Hat
Product Red Hat Advanced Cluster Security 4.2
Platforms Unknown
Default status affected
Package advanced-cluster-security/rhacs-central-db-rhel8
Package collection https://catalog.redhat.com/software/containers/
Red Hat Advanced Cluster Security 4.2 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
4.2.4-6 unaffectedrpm * Unavailable None listed
Red Hat Advanced Cluster Security 4.2
Vendor Red Hat
Product Red Hat Advanced Cluster Security 4.2
Platforms Unknown
Default status affected
Package advanced-cluster-security/rhacs-main-rhel8
Package collection https://catalog.redhat.com/software/containers/
Red Hat Advanced Cluster Security 4.2 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
4.2.4-6 unaffectedrpm * Unavailable None listed
Red Hat Advanced Cluster Security 4.2
Vendor Red Hat
Product Red Hat Advanced Cluster Security 4.2
Platforms Unknown
Default status affected
Package advanced-cluster-security/rhacs-operator-bundle
Package collection https://catalog.redhat.com/software/containers/
Red Hat Advanced Cluster Security 4.2 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
4.2.4-7 unaffectedrpm * Unavailable None listed
Red Hat Advanced Cluster Security 4.2
Vendor Red Hat
Product Red Hat Advanced Cluster Security 4.2
Platforms Unknown
Default status affected
Package advanced-cluster-security/rhacs-scanner-db-rhel8
Package collection https://catalog.redhat.com/software/containers/
Red Hat Advanced Cluster Security 4.2 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
4.2.4-6 unaffectedrpm * Unavailable None listed
Red Hat Advanced Cluster Security 4.2
Vendor Red Hat
Product Red Hat Advanced Cluster Security 4.2
Platforms Unknown
Default status affected
Package advanced-cluster-security/rhacs-scanner-db-slim-rhel8
Package collection https://catalog.redhat.com/software/containers/
Red Hat Advanced Cluster Security 4.2 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
4.2.4-7 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8
Vendor Red Hat
Product Red Hat Enterprise Linux 8
Platforms Unknown
Default status affected
Package postgresql:13
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
8090020231114113712.a75119d5 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8
Vendor Red Hat
Product Red Hat Enterprise Linux 8
Platforms Unknown
Default status affected
Package postgresql:12
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
8090020231128173330.a75119d5 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8
Vendor Red Hat
Product Red Hat Enterprise Linux 8
Platforms Unknown
Default status affected
Package postgresql:15
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
8090020231114113548.a75119d5 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.2 Advanced Update Support
Vendor Red Hat
Product Red Hat Enterprise Linux 8.2 Advanced Update Support
Platforms Unknown
Default status affected
Package postgresql:12
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.2 Advanced Update Support · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
8020020231128165246.4cda2c84 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.2 Telecommunications Update Service
Vendor Red Hat
Product Red Hat Enterprise Linux 8.2 Telecommunications Update Service
Platforms Unknown
Default status affected
Package postgresql:12
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.2 Telecommunications Update Service · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
8020020231128165246.4cda2c84 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
Vendor Red Hat
Product Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
Platforms Unknown
Default status affected
Package postgresql:12
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
8020020231128165246.4cda2c84 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Vendor Red Hat
Product Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Platforms Unknown
Default status affected
Package postgresql:12
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
8040020231127153301.522a0ee4 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Vendor Red Hat
Product Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Platforms Unknown
Default status affected
Package postgresql:13
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
8040020231127154806.522a0ee4 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.4 Telecommunications Update Service
Vendor Red Hat
Product Red Hat Enterprise Linux 8.4 Telecommunications Update Service
Platforms Unknown
Default status affected
Package postgresql:12
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.4 Telecommunications Update Service · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
8040020231127153301.522a0ee4 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.4 Telecommunications Update Service
Vendor Red Hat
Product Red Hat Enterprise Linux 8.4 Telecommunications Update Service
Platforms Unknown
Default status affected
Package postgresql:13
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.4 Telecommunications Update Service · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
8040020231127154806.522a0ee4 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
Vendor Red Hat
Product Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
Platforms Unknown
Default status affected
Package postgresql:12
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
8040020231127153301.522a0ee4 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
Vendor Red Hat
Product Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
Platforms Unknown
Default status affected
Package postgresql:13
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
8040020231127154806.522a0ee4 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.6 Extended Update Support
Vendor Red Hat
Product Red Hat Enterprise Linux 8.6 Extended Update Support
Platforms Unknown
Default status affected
Package postgresql:13
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.6 Extended Update Support · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
8060020231114115246.ad008a3a unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.6 Extended Update Support
Vendor Red Hat
Product Red Hat Enterprise Linux 8.6 Extended Update Support
Platforms Unknown
Default status affected
Package postgresql:12
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.6 Extended Update Support · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
8060020231128165328.ad008a3a unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.8 Extended Update Support
Vendor Red Hat
Product Red Hat Enterprise Linux 8.8 Extended Update Support
Platforms Unknown
Default status affected
Package postgresql:13
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.8 Extended Update Support · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
8080020231114105206.63b34585 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.8 Extended Update Support
Vendor Red Hat
Product Red Hat Enterprise Linux 8.8 Extended Update Support
Platforms Unknown
Default status affected
Package postgresql:12
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.8 Extended Update Support · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
8080020231128165335.63b34585 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 8.8 Extended Update Support
Vendor Red Hat
Product Red Hat Enterprise Linux 8.8 Extended Update Support
Platforms Unknown
Default status affected
Package postgresql:15
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 8.8 Extended Update Support · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
8080020231113134015.63b34585 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 9
Vendor Red Hat
Product Red Hat Enterprise Linux 9
Platforms Unknown
Default status affected
Package postgresql
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 9 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
0:13.13-1.el9_3 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 9
Vendor Red Hat
Product Red Hat Enterprise Linux 9
Platforms Unknown
Default status affected
Package postgresql:15
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 9 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
9030020231120082734.rhel9 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 9.0 Extended Update Support
Vendor Red Hat
Product Red Hat Enterprise Linux 9.0 Extended Update Support
Platforms Unknown
Default status affected
Package postgresql
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 9.0 Extended Update Support · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
0:13.13-1.el9_0 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 9.2 Extended Update Support
Vendor Red Hat
Product Red Hat Enterprise Linux 9.2 Extended Update Support
Platforms Unknown
Default status affected
Package postgresql
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 9.2 Extended Update Support · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
0:13.13-1.el9_2 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 9.2 Extended Update Support
Vendor Red Hat
Product Red Hat Enterprise Linux 9.2 Extended Update Support
Platforms Unknown
Default status affected
Package postgresql:15
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Enterprise Linux 9.2 Extended Update Support · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
9020020231115020618.rhel9 unaffectedrpm * Unavailable None listed
Red Hat Software Collections for Red Hat Enterprise Linux 7
Vendor Red Hat
Product Red Hat Software Collections for Red Hat Enterprise Linux 7
Platforms Unknown
Default status affected
Package rh-postgresql12-postgresql
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Software Collections for Red Hat Enterprise Linux 7 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
0:12.17-1.el7 unaffectedrpm * Unavailable None listed
Red Hat Software Collections for Red Hat Enterprise Linux 7
Vendor Red Hat
Product Red Hat Software Collections for Red Hat Enterprise Linux 7
Platforms Unknown
Default status affected
Package rh-postgresql13-postgresql
Package collection https://access.redhat.com/downloads/content/package-browser/
Red Hat Software Collections for Red Hat Enterprise Linux 7 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
0:13.13-1.el7 unaffectedrpm * Unavailable None listed
RHACS-3.74-RHEL-8
Vendor Red Hat
Product RHACS-3.74-RHEL-8
Platforms Unknown
Default status affected
Package advanced-cluster-security/rhacs-central-db-rhel8
Package collection https://catalog.redhat.com/software/containers/
RHACS-3.74-RHEL-8 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
3.74.8-9 unaffectedrpm * Unavailable None listed
RHACS-3.74-RHEL-8
Vendor Red Hat
Product RHACS-3.74-RHEL-8
Platforms Unknown
Default status affected
Package advanced-cluster-security/rhacs-main-rhel8
Package collection https://catalog.redhat.com/software/containers/
RHACS-3.74-RHEL-8 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
3.74.8-9 unaffectedrpm * Unavailable None listed
RHACS-3.74-RHEL-8
Vendor Red Hat
Product RHACS-3.74-RHEL-8
Platforms Unknown
Default status affected
Package advanced-cluster-security/rhacs-operator-bundle
Package collection https://catalog.redhat.com/software/containers/
RHACS-3.74-RHEL-8 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
3.74.8-7 unaffectedrpm * Unavailable None listed
RHACS-3.74-RHEL-8
Vendor Red Hat
Product RHACS-3.74-RHEL-8
Platforms Unknown
Default status affected
Package advanced-cluster-security/rhacs-scanner-db-rhel8
Package collection https://catalog.redhat.com/software/containers/
RHACS-3.74-RHEL-8 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
3.74.8-9 unaffectedrpm * Unavailable None listed
RHACS-3.74-RHEL-8
Vendor Red Hat
Product RHACS-3.74-RHEL-8
Platforms Unknown
Default status affected
Package advanced-cluster-security/rhacs-scanner-db-slim-rhel8
Package collection https://catalog.redhat.com/software/containers/
RHACS-3.74-RHEL-8 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
3.74.8-9 unaffectedrpm * Unavailable None listed
RHACS-4.1-RHEL-8
Vendor Red Hat
Product RHACS-4.1-RHEL-8
Platforms Unknown
Default status affected
Package advanced-cluster-security/rhacs-central-db-rhel8
Package collection https://catalog.redhat.com/software/containers/
RHACS-4.1-RHEL-8 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
4.1.6-6 unaffectedrpm * Unavailable None listed
RHACS-4.1-RHEL-8
Vendor Red Hat
Product RHACS-4.1-RHEL-8
Platforms Unknown
Default status affected
Package advanced-cluster-security/rhacs-main-rhel8
Package collection https://catalog.redhat.com/software/containers/
RHACS-4.1-RHEL-8 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
4.1.6-6 unaffectedrpm * Unavailable None listed
RHACS-4.1-RHEL-8
Vendor Red Hat
Product RHACS-4.1-RHEL-8
Platforms Unknown
Default status affected
Package advanced-cluster-security/rhacs-operator-bundle
Package collection https://catalog.redhat.com/software/containers/
RHACS-4.1-RHEL-8 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
4.1.6-6 unaffectedrpm * Unavailable None listed
RHACS-4.1-RHEL-8
Vendor Red Hat
Product RHACS-4.1-RHEL-8
Platforms Unknown
Default status affected
Package advanced-cluster-security/rhacs-scanner-db-rhel8
Package collection https://catalog.redhat.com/software/containers/
RHACS-4.1-RHEL-8 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
4.1.6-6 unaffectedrpm * Unavailable None listed
RHACS-4.1-RHEL-8
Vendor Red Hat
Product RHACS-4.1-RHEL-8
Platforms Unknown
Default status affected
Package advanced-cluster-security/rhacs-scanner-db-slim-rhel8
Package collection https://catalog.redhat.com/software/containers/
RHACS-4.1-RHEL-8 · Scoped product and version facts Version (version) Status (status) Version scheme (versionType) Exclusive end (lessThan) Inclusive end (lessThanOrEqual) Status changes (at → status)
4.1.6-6 unaffectedrpm * Unavailable None listed
Red Hat Enterprise Linux 6
Vendor Red Hat
Product Red Hat Enterprise Linux 6
Platforms Unknown
Default status unknown
Package postgresql
Package collection https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 7
Vendor Red Hat
Product Red Hat Enterprise Linux 7
Platforms Unknown
Default status affected
Package postgresql
Package collection https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 8
Vendor Red Hat
Product Red Hat Enterprise Linux 8
Platforms Unknown
Default status affected
Package postgresql:10/postgresql
Package collection https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 8
Vendor Red Hat
Product Red Hat Enterprise Linux 8
Platforms Unknown
Default status unaffected
Package postgresql:16/postgresql
Package collection https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 9
Vendor Red Hat
Product Red Hat Enterprise Linux 9
Platforms Unknown
Default status unaffected
Package postgresql:16/postgresql
Package collection https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Software Collections
Vendor Red Hat
Product Red Hat Software Collections
Platforms Unknown
Default status affected
Package rh-postgresql10-postgresql
Package collection https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.