Security advisory

{
  "id": "ec1de1d9737ca5cf273866d33a47679df478473bad5a74871b24ed4438281e28",
  "url": "https://osv.dev/vulnerability/CVE-2020-14383",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-14383",
    "summary": "A flaw was found in samba's DNS server. An authenticated user could use this flaw to the RPC server to crash. This RPC server, which also serves protocols other than dnsserver, will be restarted after a short delay, but it is easy for an authenticated non administrative attacker to crash it again as soon as it returns. The Samba DNS server itself will continue to operate, but many RPC services will not.",
    "evidence": "osv:CVE-2020-14383",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-14383",
      "aliases": [
        "CVE-2020-14383"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/samba-team/samba",
              "type": "GIT",
              "events": [
                {
                  "introduced": "df33344d8eb40221d60c99931690703a11d91bc2"
                },
                {
                  "fixed": "1819097773a381ba138f348e1f9d4b88182b6d9c"
                },
                {
                  "introduced": "21679048604ab7d74f70cc378e1dcaebbaa9d561"
                },
                {
                  "fixed": "43c7685056db075f095676873a31d46a0c47a654"
                },
                {
                  "introduced": "3fe82c204f0d88cb6db50b7bd1f798b591a918f8"
                },
                {
                  "fixed": "9e9941a843f68790cbc9089eed0c31fcac817476"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.0.0"
                      },
                      {
                        "fixed": "4.11.15"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.12.0"
                      },
                      {
                        "fixed": "4.12.9"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.13.0"
                      },
                      {
                        "fixed": "4.13.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "samba-4.12.8",
            "samba-4.13.0",
            "samba-4.12.6",
            "samba-4.12.5",
            "samba-4.12.3",
            "ldb-2.1.3",
            "samba-4.12.1",
            "samba-4.12.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-14383.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:58.345839583Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html",
        "https://security.gentoo.org/glsa/202012-24",
        "https://www.samba.org/samba/security/CVE-2020-14383.html",
        "https://bugzilla.redhat.com/show_bug.cgi?id=1892636"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:enterprise_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-14383",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 439073,
  "published_at": "2020-12-02T01:15:12.17+00:00"
}