CVE-2023-5870

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    CVE-2023-5870

    Published: 10 Dec 2023Last Modified: 16 Apr 2026

    Summary:

    Details: 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.

    References: https://lists.debian.org/debian-lts-announce/2023/11/msg00007.html, https://www.postgresql.org/about/news/postgresql-161-155-1410-1313-1217-and-1122-released-2749/, https://access.redhat.com/errata/RHSA-2023:7656, https://access.redhat.com/errata/RHSA-2023:7714, https://access.redhat.com/errata/RHSA-2023:7770, https://access.redhat.com/errata/RHSA-2023:7883, https://access.redhat.com/errata/RHSA-2023:7885, https://access.redhat.com/errata/RHSA-2024:0337, https://access.redhat.com/errata/RHSA-2023:7580, https://access.redhat.com/errata/RHSA-2023:7581, https://access.redhat.com/errata/RHSA-2023:7616, https://access.redhat.com/errata/RHSA-2023:7695, https://access.redhat.com/errata/RHSA-2023:7785, https://access.redhat.com/security/cve/CVE-2023-5870, https://security.netapp.com/advisory/ntap-20240119-0003/, https://access.redhat.com/errata/RHSA-2023:7666, https://access.redhat.com/errata/RHSA-2023:7667, https://access.redhat.com/errata/RHSA-2023:7784, https://access.redhat.com/errata/RHSA-2023:7884, https://access.redhat.com/errata/RHSA-2024:0332, https://www.postgresql.org/support/security/CVE-2023-5870/, https://access.redhat.com/errata/RHSA-2023:7545, https://access.redhat.com/errata/RHSA-2023:7579, https://access.redhat.com/errata/RHSA-2023:7694, https://access.redhat.com/errata/RHSA-2023:7772, https://access.redhat.com/errata/RHSA-2024:0304, https://bugzilla.redhat.com/show_bug.cgi?id=2247170

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2023-5870 | CVE-DB