Security advisory

{
  "id": "1ac9e7633a92d812af13d950e04689351cd4aa078f7e052445031b1d652087a9",
  "url": "https://osv.dev/vulnerability/CVE-2018-10918",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-10918",
    "summary": "A null pointer dereference flaw was found in the way samba checked database outputs from the LDB database layer. An authenticated attacker could use this flaw to crash a samba server in an Active Directory Domain Controller configuration. Samba versions before 4.7.9 and 4.8.4 are vulnerable.",
    "evidence": "osv:CVE-2018-10918",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-10918",
      "aliases": [
        "CVE-2018-10918"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/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": "d1e69845e28c20a491c4cd60c712b46ddfcb9dc0"
                },
                {
                  "fixed": "3e5da7e8878a78da96fbdccd05953c791560a6b5"
                },
                {
                  "introduced": "5a9d09fee44052e18ce241ec28f78498d2e20d73"
                },
                {
                  "fixed": "626c489c2c879aef8b82efe9f7e832cca0183f4d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.7.0"
                      },
                      {
                        "fixed": "4.7.9"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.8.0"
                      },
                      {
                        "fixed": "4.8.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "samba-4.7.8",
            "ldb-1.3.5",
            "samba-4.8.3",
            "ldb-1.3.4",
            "samba-4.8.2",
            "ldb-1.3.3",
            "samba-4.8.1",
            "samba-4.7.7",
            "samba-4.8.0",
            "samba-4.7.5",
            "samba-4.7.4",
            "ldb-1.2.3",
            "samba-4.7.2",
            "samba-4.7.1",
            "samba-4.7.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-10918.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:36.224977868Z",
      "provider": "osv",
      "references": [
        "https://security.gentoo.org/glsa/202003-52",
        "https://security.netapp.com/advisory/ntap-20180814-0001/",
        "https://usn.ubuntu.com/3738-1/",
        "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10918",
        "https://www.samba.org/samba/security/CVE-2018-10918.html"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "14.04"
                  },
                  {
                    "last_affected": "14.04"
                  },
                  {
                    "introduced": "16.04"
                  },
                  {
                    "last_affected": "16.04"
                  },
                  {
                    "introduced": "18.04"
                  },
                  {
                    "last_affected": "18.04"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-10918",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 433915,
  "published_at": "2018-08-22T17:29:00.477+00:00"
}