Security advisory

{
  "id": "0658c2cedf39509d629288f3ea5c03342c0fb6a14a5720c61f30167a8bc1959c",
  "url": "https://osv.dev/vulnerability/CVE-2021-23192",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-23192",
    "summary": "A flaw was found in the way samba implemented DCE/RPC. If a client to a Samba server sent a very large DCE/RPC request, and chose to fragment it, an attacker could replace later fragments with their own data, bypassing the signature requirements.",
    "evidence": "osv:CVE-2021-23192",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-23192",
      "aliases": [
        "CVE-2021-23192"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/samba-team/samba",
              "type": "GIT",
              "events": [
                {
                  "introduced": "25f2fe02a615e2cf906b6fa495acd8ea0aa9998a"
                },
                {
                  "fixed": "db11778b57610e24324aa4342f89918f66157d71"
                },
                {
                  "introduced": "9b49519cae3e967af9ea48dc5fcfb6c145e31db4"
                },
                {
                  "fixed": "9312b1832e5a808a63fc7f9e7d6e70348cc9eb86"
                },
                {
                  "introduced": "fc8342bd26d1c55ca5780b427f675f31147b27f9"
                },
                {
                  "fixed": "7d0c030d4233974c4b9463dad44efdb05e6186f1"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.10.0"
                      },
                      {
                        "fixed": "4.13.14"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.14.0"
                      },
                      {
                        "fixed": "4.14.10"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.15.0"
                      },
                      {
                        "fixed": "4.15.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "ldb-2.3.2",
            "samba-4.14.9",
            "samba-4.15.1",
            "ldb-2.4.1",
            "ldb-2.3.1",
            "samba-4.14.8",
            "samba-4.15.0",
            "samba-4.14.7",
            "samba-4.14.6",
            "samba-4.14.5",
            "samba-4.14.3",
            "samba-4.14.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-23192.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:15.919210425Z",
      "provider": "osv",
      "references": [
        "https://security.gentoo.org/glsa/202309-06",
        "https://ubuntu.com/security/CVE-2021-23192",
        "https://bugzilla.redhat.com/show_bug.cgi?id=2019666",
        "https://www.samba.org/samba/security/CVE-2021-23192.html"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-23192",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 429238,
  "published_at": "2022-03-02T23:15:08.403+00:00"
}