ubuntu-cve-2022-26495
Vulnerability from osv_ubuntu
Published
2022-03-06 06:15
Modified
2025-10-24 04:53
Summary
Details

In nbd-server in nbd before 3.24, there is an integer overflow with a resultant heap-based buffer overflow. A value of 0xffffffff in the name length field will cause a zero-sized buffer to be allocated for the name, resulting in a write to a dangling pointer. This issue exists for the NBD_OPT_INFO, NBD_OPT_GO, and NBD_OPT_EXPORT_NAME messages.

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

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "nbd-client",
            "binary_version": "1:3.7-1ubuntu0.1"
          },
          {
            "binary_name": "nbd-server",
            "binary_version": "1:3.7-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "nbd",
        "purl": "pkg:deb/ubuntu/nbd@1:3.7-1ubuntu0.1?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:3.3-3ubuntu1",
        "1:3.4-1ubuntu1",
        "1:3.4-2ubuntu1",
        "1:3.5-1ubuntu1",
        "1:3.6-1ubuntu1",
        "1:3.7-1",
        "1:3.7-1ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "nbd-client",
            "binary_version": "1:3.13-1"
          },
          {
            "binary_name": "nbd-server",
            "binary_version": "1:3.13-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "nbd",
        "purl": "pkg:deb/ubuntu/nbd@1:3.13-1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:3.10-1",
        "1:3.13-1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "nbd-client",
            "binary_version": "1:3.16.2-1ubuntu0.2"
          },
          {
            "binary_name": "nbd-server",
            "binary_version": "1:3.16.2-1ubuntu0.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "nbd",
        "purl": "pkg:deb/ubuntu/nbd@1:3.16.2-1ubuntu0.2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:3.16.2-1ubuntu0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:3.15.2-3",
        "1:3.16.2-1",
        "1:3.16.2-1ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "nbd-client",
            "binary_version": "1:3.20-1ubuntu0.1"
          },
          {
            "binary_name": "nbd-server",
            "binary_version": "1:3.20-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "nbd",
        "purl": "pkg:deb/ubuntu/nbd@1:3.20-1ubuntu0.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:3.20-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:3.19-3",
        "1:3.20-1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "nbd-client",
            "binary_version": "1:3.23-3ubuntu1"
          },
          {
            "binary_name": "nbd-server",
            "binary_version": "1:3.23-3ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "nbd",
        "purl": "pkg:deb/ubuntu/nbd@1:3.23-3ubuntu1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:3.23-3ubuntu1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:3.21-1build3",
        "1:3.22-1",
        "1:3.23-3"
      ]
    }
  ],
  "aliases": [],
  "details": "In nbd-server in nbd before 3.24, there is an integer overflow with a resultant heap-based buffer overflow. A value of 0xffffffff in the name length field will cause a zero-sized buffer to be allocated for the name, resulting in a write to a dangling pointer. This issue exists for the NBD_OPT_INFO, NBD_OPT_GO, and NBD_OPT_EXPORT_NAME messages.",
  "id": "UBUNTU-CVE-2022-26495",
  "modified": "2025-10-24T04:53:34Z",
  "published": "2022-03-06T06:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-26495"
    },
    {
      "type": "REPORT",
      "url": "https://lists.debian.org/nbd/2022/01/msg00037.html"
    },
    {
      "type": "REPORT",
      "url": "https://sourceforge.net/projects/nbd/files/nbd/"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5323-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2022-26495"
    }
  ],
  "related": [
    "USN-5323-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2022-26495"
  ]
}



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