Security advisory

{
  "id": "6f6b439a6b6c6a2e266ee7552c0df59da5728739f07797ce0e3e72d13efce184",
  "url": "https://osv.dev/vulnerability/CVE-2018-20004",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-20004",
    "summary": "An issue has been found in Mini-XML (aka mxml) 2.12. It is a stack-based buffer overflow in mxml_write_node in mxml-file.c via vectors involving a double-precision floating point number and the '' substring, as demonstrated by testmxml.",
    "evidence": "osv:CVE-2018-20004",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-20004",
      "aliases": [
        "CVE-2018-20004"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/michaelrsweet/mxml",
              "type": "GIT",
              "events": [
                {
                  "introduced": "3aaa12c7d709d05286255d191998f29105dd407a"
                },
                {
                  "last_affected": "3aaa12c7d709d05286255d191998f29105dd407a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:mini-xml_project:mini-xml:2.12:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.12"
                      },
                      {
                        "last_affected": "2.12"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.12",
            "v2.12"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-20004.json"
          }
        }
      ],
      "modified": "2026-10-20T10:50:05.641441652Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N53IJHDYR5HVQLKH4J6B27OEQLGKSGY5/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RNWF6BAU7S42O4LE4B74KIMHFE2HDNMI/",
        "https://lists.debian.org/debian-lts-announce/2019/01/msg00018.html",
        "https://github.com/fouzhe/security/tree/master/mxml#stack-buffer-overflow-in-function-mxml_write_node",
        "https://github.com/michaelrsweet/mxml/issues/233"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "28"
                  },
                  {
                    "last_affected": "28"
                  },
                  {
                    "introduced": "29"
                  },
                  {
                    "last_affected": "29"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-20004",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 381257,
  "published_at": "2018-12-10T06:29:00.303+00:00"
}