ubuntu-cve-2023-5871
Vulnerability from osv_ubuntu
Published
2023-11-27 12:15
Modified
2026-04-22 07:45
Summary
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.

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libnbd-ocaml",
            "binary_version": "1.2.2-1ubuntu2"
          },
          {
            "binary_name": "libnbd0",
            "binary_version": "1.2.2-1ubuntu2"
          },
          {
            "binary_name": "nbdfuse",
            "binary_version": "1.2.2-1ubuntu2"
          },
          {
            "binary_name": "python3-libnbd",
            "binary_version": "1.2.2-1ubuntu2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libnbd",
        "purl": "pkg:deb/ubuntu/libnbd@1.2.2-1ubuntu2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.3-1",
        "1.2.1-2",
        "1.2.2-1ubuntu2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libnbd-bin",
            "binary_version": "1.10.5-1"
          },
          {
            "binary_name": "libnbd-ocaml",
            "binary_version": "1.10.5-1"
          },
          {
            "binary_name": "libnbd0",
            "binary_version": "1.10.5-1"
          },
          {
            "binary_name": "python3-libnbd",
            "binary_version": "1.10.5-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libnbd",
        "purl": "pkg:deb/ubuntu/libnbd@1.10.5-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.3-1",
        "1.8.5-1",
        "1.10.2-1",
        "1.10.5-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libnbd-bin",
            "binary_version": "1.20.0-1"
          },
          {
            "binary_name": "libnbd-ocaml",
            "binary_version": "1.20.0-1"
          },
          {
            "binary_name": "libnbd0",
            "binary_version": "1.20.0-1"
          },
          {
            "binary_name": "python3-libnbd",
            "binary_version": "1.20.0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libnbd",
        "purl": "pkg:deb/ubuntu/libnbd@1.20.0-1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.16.4-1",
        "1.18.1-1",
        "1.18.2-1",
        "1.18.2-1build1",
        "1.18.2-2",
        "1.18.2-2build1",
        "1.20.0-1"
      ]
    }
  ],
  "aliases": [],
  "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.",
  "id": "UBUNTU-CVE-2023-5871",
  "modified": "2026-04-22T07:45:08Z",
  "published": "2023-11-27T12:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-5871"
    },
    {
      "type": "REPORT",
      "url": "https://lists.libguestfs.org/archives/list/guestfs@lists.libguestfs.org/thread/PFVUCMPFQUDC23JXSCUUPXIGDZ7XCFMD/"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-5871"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-5871"
  ]
}



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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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