medium
4.4
CWE
400
EPSS
0.120%
Advisory Published
CVE Published
Updated

CVE-2023-5870: Postgresql: role pg_signal_backend can signal certain superuser processes.

First published: Tue Oct 31 2023(Updated: )

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.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/PostgreSQL<16.1
16.1
redhat/PostgreSQL<15.5
15.5
redhat/PostgreSQL<14.10
14.10
redhat/PostgreSQL<13.13
13.13
redhat/PostgreSQL<12.17
12.17
redhat/PostgreSQL<11.22
11.22
debian/postgresql-13
13.16-0+deb11u1
debian/postgresql-15
15.8-0+deb12u1
debian/postgresql-16
16.4-1
IBM InfoSphere Guardium z/OS<=11.3
IBM InfoSphere Guardium z/OS<=11.4
IBM InfoSphere Guardium z/OS<=11.5
IBM InfoSphere Guardium z/OS<=12.0
PostgreSQL Common>=11.0<11.22
PostgreSQL Common>=12.0<12.17
PostgreSQL Common>=13.0<13.13
PostgreSQL Common>=14.0<14.10
PostgreSQL Common>=15.0<15.5
PostgreSQL Common=16.0
Red Hat CodeReady Linux Builder=9.2
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support=9.0_ppc64le
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support=9.2_ppc64le
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support=8.6_aarch64
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support=9.0_aarch64
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support=9.2_aarch64
Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support=9.0_s390x
Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support=9.2_s390x
Red Hat CodeReady Linux Builder for Power, little endian=9.0_ppc64le
Red Hat CodeReady Linux Builder for Power, little endian=9.2_ppc64le
Red Hat Software Collections=1.0
Red Hat Enterprise Linux=8.0
Red Hat Enterprise Linux=9.0
Red Hat Enterprise Linux Server EUS=8.6
Red Hat Enterprise Linux Server EUS=8.8
Red Hat Enterprise Linux Server EUS=9.0
Red Hat Enterprise Linux Server EUS=9.2
Red Hat Enterprise Linux=8.0
Red Hat Enterprise Linux=8.8_aarch64
Red Hat Enterprise Linux for IBM Z Systems=8.0_s390x
Red Hat Enterprise Linux for IBM Z Systems (s390x)=8.6_s390x
Red Hat Enterprise Linux for IBM Z Systems (s390x)=8.8_s390x
Red Hat Enterprise Linux for IBM Z Systems (s390x)=9.0_s390x
Red Hat Enterprise Linux for IBM Z Systems (s390x)=9.2_s390x
Red Hat Enterprise Linux for Power, little endian=8.0_ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Update Support=8.6_ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Update Support=8.8_ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Update Support=9.0_ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Update Support=9.2_ppc64le
Red Hat Enterprise Linux Server=8.2
Red Hat Enterprise Linux Server=8.4
Red Hat Enterprise Linux Server=8.6
Red Hat Enterprise Linux Server=9.2
Red Hat Enterprise Linux Server=8.2
Red Hat Enterprise Linux Server=8.4
Red Hat Enterprise Linux Server=8.6

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2023-5870?

    The severity of CVE-2023-5870 is low.

  • How do I update my PostgreSQL package to fix CVE-2023-5870?

    You can update your PostgreSQL package to version 16.1 or apply the appropriate security updates for your specific version.

  • Where can I find more information about CVE-2023-5870?

    You can find more information about CVE-2023-5870 at the following references: [link1], [link2], [link3].

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