Security advisory

{
  "id": "30179fa3b026cd8c8a25b1a843cf0774966bec0c46cb76caf39566f0d68258bc",
  "url": "https://osv.dev/vulnerability/CVE-2018-16852",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-16852",
    "summary": "Samba from version 4.9.0 and before version 4.9.3 is vulnerable to a NULL pointer de-reference. During the processing of an DNS zone in the DNS management DCE/RPC server, the internal DNS server or the Samba DLZ plugin for BIND9, if the DSPROPERTY_ZONE_MASTER_SERVERS property or DSPROPERTY_ZONE_SCAVENGING_SERVERS property is set, the server will follow a NULL pointer and terminate. There is no further vulnerability associated with this issue, merely a denial of service.",
    "evidence": "osv:CVE-2018-16852",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2018-16852",
      "aliases": [
        "CVE-2018-16852"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/samba-team/samba",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4fc4ae2924aaa2fc184b7385069274526fa8a4c2"
                },
                {
                  "fixed": "40c057c900a9367e8020c943d29547ea8942212f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.9.0"
                      },
                      {
                        "fixed": "4.9.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "samba-4.9.2",
            "ldb-1.4.3",
            "samba-4.9.1",
            "samba-4.9.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-16852.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:19.201167743Z",
      "provider": "osv",
      "references": [
        "https://security.gentoo.org/glsa/202003-52",
        "https://security.netapp.com/advisory/ntap-20181127-0001/",
        "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16852",
        "https://www.samba.org/samba/security/CVE-2018-16852.html"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-16852",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 429962,
  "published_at": "2018-11-28T14:29:00.487+00:00"
}