CVE-2023-5871

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    CVE-2023-5871

    Published: 27 Nov 2023Last Modified: 12 Aug 2026

    Summary: Libnbd: malicious nbd server may crash libnbd

    Details: A flaw was found in libnbd, due to a malicious Network Block Device (NBD), a protocol for accessing Block Devices such as hard disks over a Network. This issue may allow a malicious NBD server to cause a Denial of Service.

    References: https://access.redhat.com/downloads/content/package-browser/, https://lists.libguestfs.org/archives/list/[email protected]/thread/PFVUCMPFQUDC23JXSCUUPXIGDZ7XCFMD/, https://access.redhat.com/errata/RHSA-2024:2204, https://access.redhat.com/security/cve/CVE-2023-5871, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/5xxx/CVE-2023-5871.json, https://nvd.nist.gov/vuln/detail/CVE-2023-5871, https://bugzilla.redhat.com/show_bug.cgi?id=2247308

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- b2c956827f39d8c7ead3118f7ead1089cc52dc61
    Fixed -999560eb9edf5037b4fcb4ffbbb0cfa75d88d0b1

    Affected versions

    1.19.1

    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-2023-5871 | CVE-DB