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 JDBC Driver>=11.0<11.22
PostgreSQL JDBC Driver>=12.0<12.17
PostgreSQL JDBC Driver>=13.0<13.13
PostgreSQL JDBC Driver>=14.0<14.10
PostgreSQL JDBC Driver>=15.0<15.5
PostgreSQL JDBC Driver=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
Red Hat Enterprise Linux=8.0
Red Hat 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

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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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