Security advisory

{
  "id": "cce309e1df28b1d01a5a15f60308e97a13b978b72d1cbbdd4ca5406024b9e673",
  "url": "https://osv.dev/vulnerability/CVE-2017-6800",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-6800",
    "summary": "An issue was discovered in ytnef before 1.9.2. An invalid memory access (heap-based buffer over-read) can occur during handling of LONG data types, related to MAPIPrint() in libytnef.",
    "evidence": "osv:CVE-2017-6800",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2017-6800",
      "aliases": [
        "CVE-2017-6800"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/yeraze/ytnef",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "b36d6b25b7a546fc28d6c3812124e487987a4910"
                },
                {
                  "fixed": "f98f5d4adc1c4bd4033638f6167c1bb95d642f89"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:ytnef_project:ytnef:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.9.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "f98f5d4adc1c4bd4033638f6167c1bb95d642f89"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.9.1",
            "v1.9",
            "v1.8",
            "v1.7"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-6800.json",
            "vanir_signatures": [
              {
                "id": "CVE-2017-6800-7b314866",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "109188485835561795037535394831216520692",
                    "160949513804981363855458218172982631155",
                    "247737112674234316016801566285593276020",
                    "292694204295282154307318766843953769884"
                  ]
                },
                "source": "https://github.com/yeraze/ytnef/commit/f98f5d4adc1c4bd4033638f6167c1bb95d642f89",
                "target": {
                  "file": "lib/ytnef.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2017-6800-bfd8834e",
                "digest": {
                  "length": 4082,
                  "function_hash": "236397931918884136839219923874298647623"
                },
                "source": "https://github.com/yeraze/ytnef/commit/f98f5d4adc1c4bd4033638f6167c1bb95d642f89",
                "target": {
                  "file": "lib/ytnef.c",
                  "function": "MAPIPrint"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:25:11Z"
          }
        }
      ],
      "modified": "2026-10-20T13:25:11.046203299Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ/",
        "https://github.com/Yeraze/ytnef/commit/f98f5d4adc1c4bd4033638f6167c1bb95d642f89",
        "https://github.com/Yeraze/ytnef/issues/28"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  },
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2017-6800",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387657,
  "published_at": "2017-03-10T10:59:00.517+00:00"
}