{
  "cveId": "CVE-2023-5871",
  "url": "https://patchblox.com/security/cve/CVE-2023-5871",
  "summary": "CVE-2023-5871 is fixed in 7 products on 1 platform, first by DEBIAN-CVE-2023-5871, released November 27, 2023. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "ocaml-libnbd-devel: Network Block Device (NBD) is a protocol for accessing Block Devices (hard disks and disk-like devices) over a Network",
  "description": "Network Block Device (NBD) is a protocol for accessing Block Devices (hard disks and disk-like devices) over a Network. The libnbd is a userspace client library for writing NBD clients.\n\nSecurity Fix(es):\n\n* libnbd: Malicious NBD server may crash libnbd (CVE-2023-5871)\n\n* libnbd: Crash or misbehaviour when NBD server returns an unexpected block size (CVE-2023-5215)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 9.4 Release Notes linked from the References section.",
  "published": "2023-11-27T12:15:07Z",
  "severity": "Moderate",
  "cvss": 5.3,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
  "epss": 0.01108,
  "epssPercentile": 0.66096,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libnbd",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1.18.1-1",
      "fix": "DEBIAN-CVE-2023-5871",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-5871",
      "released": "2023-11-27T12:15:07Z"
    },
    {
      "platform": "linux",
      "product": "libnbd",
      "release": "Debian 14",
      "fixedVersion": "1.18.1-1",
      "fix": "DEBIAN-CVE-2023-5871",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-5871",
      "released": "2023-11-27T12:15:07Z"
    },
    {
      "platform": "linux",
      "product": "libnbd",
      "release": "RHEL 9",
      "fixedVersion": "0:1.18.1-3.el9",
      "fix": "RHSA-2024:2204",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2024-2204",
      "released": "2024-04-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libnbd",
      "release": "almalinux 9",
      "fixedVersion": "1.18.1-3.el9",
      "fix": "ALSA-2024:2204",
      "url": "https://patchblox.com/security/fix/linux/alsa-2024-2204",
      "released": "2024-04-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libnbd",
      "release": "ol 9",
      "fixedVersion": "0:1.18.1-3.el9",
      "fix": "ELSA-2024-2204",
      "url": "https://patchblox.com/security/fix/linux/elsa-2024-2204",
      "released": "2024-05-02T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libnbd-bash-completion",
      "release": "RHEL 9",
      "fixedVersion": "0:1.18.1-3.el9",
      "fix": "RHSA-2024:2204",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2024-2204",
      "released": "2024-04-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libnbd-bash-completion",
      "release": "almalinux 9",
      "fixedVersion": "1.18.1-3.el9",
      "fix": "ALSA-2024:2204",
      "url": "https://patchblox.com/security/fix/linux/alsa-2024-2204",
      "released": "2024-04-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libnbd-bash-completion",
      "release": "ol 9",
      "fixedVersion": "0:1.18.1-3.el9",
      "fix": "ELSA-2024-2204",
      "url": "https://patchblox.com/security/fix/linux/elsa-2024-2204",
      "released": "2024-05-02T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libnbd-devel",
      "release": "RHEL 9",
      "fixedVersion": "0:1.18.1-3.el9",
      "fix": "RHSA-2024:2204",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2024-2204",
      "released": "2024-04-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libnbd-devel",
      "release": "almalinux 9",
      "fixedVersion": "1.18.1-3.el9",
      "fix": "ALSA-2024:2204",
      "url": "https://patchblox.com/security/fix/linux/alsa-2024-2204",
      "released": "2024-04-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libnbd-devel",
      "release": "ol 9",
      "fixedVersion": "0:1.18.1-3.el9",
      "fix": "ELSA-2024-2204",
      "url": "https://patchblox.com/security/fix/linux/elsa-2024-2204",
      "released": "2024-05-02T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nbdfuse",
      "release": "RHEL 9",
      "fixedVersion": "0:1.18.1-3.el9",
      "fix": "RHSA-2024:2204",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2024-2204",
      "released": "2024-04-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nbdfuse",
      "release": "almalinux 9",
      "fixedVersion": "1.18.1-3.el9",
      "fix": "ALSA-2024:2204",
      "url": "https://patchblox.com/security/fix/linux/alsa-2024-2204",
      "released": "2024-04-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nbdfuse",
      "release": "ol 9",
      "fixedVersion": "0:1.18.1-3.el9",
      "fix": "ELSA-2024-2204",
      "url": "https://patchblox.com/security/fix/linux/elsa-2024-2204",
      "released": "2024-05-02T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "ocaml-libnbd",
      "release": "RHEL 9",
      "fixedVersion": "0:1.18.1-3.el9",
      "fix": "RHSA-2024:2204",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2024-2204",
      "released": "2024-04-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "ocaml-libnbd",
      "release": "almalinux 9",
      "fixedVersion": "1.18.1-3.el9",
      "fix": "ALSA-2024:2204",
      "url": "https://patchblox.com/security/fix/linux/alsa-2024-2204",
      "released": "2024-04-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "ocaml-libnbd",
      "release": "ol 9",
      "fixedVersion": "0:1.18.1-3.el9",
      "fix": "ELSA-2024-2204",
      "url": "https://patchblox.com/security/fix/linux/elsa-2024-2204",
      "released": "2024-05-02T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "ocaml-libnbd-devel",
      "release": "RHEL 9",
      "fixedVersion": "0:1.18.1-3.el9",
      "fix": "RHSA-2024:2204",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2024-2204",
      "released": "2024-04-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "ocaml-libnbd-devel",
      "release": "almalinux 9",
      "fixedVersion": "1.18.1-3.el9",
      "fix": "ALSA-2024:2204",
      "url": "https://patchblox.com/security/fix/linux/alsa-2024-2204",
      "released": "2024-04-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "ocaml-libnbd-devel",
      "release": "ol 9",
      "fixedVersion": "0:1.18.1-3.el9",
      "fix": "ELSA-2024-2204",
      "url": "https://patchblox.com/security/fix/linux/elsa-2024-2204",
      "released": "2024-05-02T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-libnbd",
      "release": "RHEL 9",
      "fixedVersion": "0:1.18.1-3.el9",
      "fix": "RHSA-2024:2204",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2024-2204",
      "released": "2024-04-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-libnbd",
      "release": "almalinux 9",
      "fixedVersion": "1.18.1-3.el9",
      "fix": "ALSA-2024:2204",
      "url": "https://patchblox.com/security/fix/linux/alsa-2024-2204",
      "released": "2024-04-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-libnbd",
      "release": "ol 9",
      "fixedVersion": "0:1.18.1-3.el9",
      "fix": "ELSA-2024-2204",
      "url": "https://patchblox.com/security/fix/linux/elsa-2024-2204",
      "released": "2024-05-02T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}