Security advisory

{
  "id": "b61ba76baf99b7b893fda7ec5f9962ffba30f8373367a09e04ea66ef642544d3",
  "url": "https://osv.dev/vulnerability/CVE-2017-10671",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-10671",
    "summary": "Heap-based Buffer Overflow in the de_dotdot function in libhttpd.c in sthttpd before 2.27.1 allows remote attackers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a crafted filename.",
    "evidence": "osv:CVE-2017-10671",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2017-10671",
      "aliases": [
        "CVE-2017-10671"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/blueness/sthttpd",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2845bf5bff2b820d2336c8c8061cbfc5f271e720"
                },
                {
                  "fixed": "c0dc63a49d8605649f1d8e4a96c9b468b0bff660"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:sthttpd_project:sthttpd:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.27.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "c0dc63a49d8605649f1d8e4a96c9b468b0bff660"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "2845bf5bff2b820d2336c8c8061cbfc5f271e720"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.27.1"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-10671.json",
            "vanir_signatures": [
              {
                "id": "CVE-2017-10671-29b3bc57",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "31622178336681743686303755056012371620",
                    "214863769995483382969825078872332022510",
                    "62992683728358547129517580158816060754",
                    "310969007111829704107366180939192588527"
                  ]
                },
                "source": "https://github.com/blueness/sthttpd/commit/c0dc63a49d8605649f1d8e4a96c9b468b0bff660",
                "target": {
                  "file": "src/libhttpd.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2017-10671-a63e0fd5",
                "digest": {
                  "length": 1022,
                  "function_hash": "64795455695707646306100003558705630774"
                },
                "source": "https://github.com/blueness/sthttpd/commit/c0dc63a49d8605649f1d8e4a96c9b468b0bff660",
                "target": {
                  "file": "src/libhttpd.c",
                  "function": "de_dotdot"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:15:50Z"
          }
        }
      ],
      "modified": "2026-10-20T13:15:50.547475472Z",
      "provider": "osv",
      "references": [
        "https://github.com/blueness/sthttpd/commit/c0dc63a49d8605649f1d8e4a96c9b468b0bff660",
        "https://github.com/blueness/sthttpd/releases/tag/v2.27.1"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-10671",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387420,
  "published_at": "2017-06-29T08:29:00.217+00:00"
}