UBUNTU-CVE-2023-5215 (CVE-2023-5215)

Vulnerability from osv_ubuntu – Published: 2023-09-28 14:15 – Updated: 2026-05-20 15:02 – Source website
VLAI
Details

A flaw was found in libnbd. A server can reply with a block size larger than 2^63 (the NBD spec states the size is a 64-bit unsigned value). This issue could lead to an application crash or other unintended behavior for NBD clients that doesn't treat the return value of the nbd_get_size() function correctly.

Severity
5.3 (Medium)
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libnbd-bin",
            "binary_version": "1.22.2-1build2"
          },
          {
            "binary_name": "libnbd-ocaml",
            "binary_version": "1.22.2-1build2"
          },
          {
            "binary_name": "libnbd0",
            "binary_version": "1.22.2-1build2"
          },
          {
            "binary_name": "python3-libnbd",
            "binary_version": "1.22.2-1build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libnbd",
        "purl": "pkg:deb/ubuntu/libnbd@1.22.2-1build2?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.22.0-1",
        "1.22.2-1build1",
        "1.22.2-1build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libnbd-bin",
            "binary_version": "1.24.2-1ubuntu1"
          },
          {
            "binary_name": "libnbd-ocaml",
            "binary_version": "1.24.2-1ubuntu1"
          },
          {
            "binary_name": "libnbd0",
            "binary_version": "1.24.2-1ubuntu1"
          },
          {
            "binary_name": "python3-libnbd",
            "binary_version": "1.24.2-1ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libnbd",
        "purl": "pkg:deb/ubuntu/libnbd@1.24.2-1ubuntu1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.22.2-1build2",
        "1.24.0-2ubuntu1",
        "1.24.1-1ubuntu6",
        "1.24.2-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw was found in libnbd. A server can reply with a block size larger than 2^63 (the NBD spec states the size is a 64-bit unsigned value). This issue could lead to an application crash or other unintended behavior for NBD clients that doesn\u0027t treat the return value of the nbd_get_size() function correctly.",
  "id": "UBUNTU-CVE-2023-5215",
  "modified": "2026-05-20T15:02:15Z",
  "published": "2023-09-28T14:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-5215"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2023-5215"
    },
    {
      "type": "REPORT",
      "url": "https://listman.redhat.com/archives/libguestfs/2023-September/032635.html"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-5215"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-5215"
  ]
}



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