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 secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
PostgreSQL PostgreSQL>=11.0<11.22
PostgreSQL PostgreSQL>=12.0<12.17
PostgreSQL PostgreSQL>=13.0<13.13
PostgreSQL PostgreSQL>=14.0<14.10
PostgreSQL PostgreSQL>=15.0<15.5
PostgreSQL PostgreSQL=16.0
Redhat Codeready Linux Builder Eus=9.2
Redhat Codeready Linux Builder Eus For Power Little Endian Eus=9.0_ppc64le
Redhat Codeready Linux Builder Eus For Power Little Endian Eus=9.2_ppc64le
Redhat Codeready Linux Builder For Arm64 Eus=8.6_aarch64
Redhat Codeready Linux Builder For Arm64 Eus=9.0_aarch64
Redhat Codeready Linux Builder For Arm64 Eus=9.2_aarch64
Redhat Codeready Linux Builder For Ibm Z Systems Eus=9.0_s390x
Redhat Codeready Linux Builder For Ibm Z Systems Eus=9.2_s390x
Redhat Codeready Linux Builder For Power Little Endian Eus=9.0_ppc64le
Redhat Codeready Linux Builder For Power Little Endian Eus=9.2_ppc64le
Redhat Software Collections=1.0
Redhat Enterprise Linux=8.0
Redhat Enterprise Linux=9.0
Redhat Enterprise Linux Eus=8.6
Redhat Enterprise Linux Eus=8.8
Redhat Enterprise Linux Eus=9.0
Redhat Enterprise Linux Eus=9.2
Redhat Enterprise Linux For Arm 64=8.0
Redhat Enterprise Linux For Arm 64=8.8_aarch64
Redhat Enterprise Linux For Ibm Z Systems=8.0_s390x
Redhat Enterprise Linux For Ibm Z Systems Eus=8.6_s390x
Redhat Enterprise Linux For Ibm Z Systems Eus=8.8_s390x
Redhat Enterprise Linux For Ibm Z Systems Eus=9.0_s390x
Redhat Enterprise Linux For Ibm Z Systems Eus=9.2_s390x
Redhat Enterprise Linux For Power Little Endian=8.0_ppc64le
Redhat Enterprise Linux For Power Little Endian Eus=8.6_ppc64le
Redhat Enterprise Linux For Power Little Endian Eus=8.8_ppc64le
Redhat Enterprise Linux For Power Little Endian Eus=9.0_ppc64le
Redhat Enterprise Linux For Power Little Endian Eus=9.2_ppc64le
Redhat Enterprise Linux Server Aus=8.2
Redhat Enterprise Linux Server Aus=8.4
Redhat Enterprise Linux Server Aus=8.6
Redhat Enterprise Linux Server Aus=9.2
Redhat Enterprise Linux Server Tus=8.2
Redhat Enterprise Linux Server Tus=8.4
Redhat Enterprise Linux Server Tus=8.6
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
IBM Security Guardium<=11.3
IBM Security Guardium<=11.4
IBM Security Guardium<=11.5
IBM Security Guardium<=12.0
debian/postgresql-13
13.16-0+deb11u1
debian/postgresql-15
15.8-0+deb12u1
debian/postgresql-16
16.4-1

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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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