Security advisory

{
  "id": "7fa9e1c0b61e2cadd2e20c34c1cd0f1a04ca3d66f04995da985ab6be7aad1002",
  "url": "https://osv.dev/vulnerability/CVE-2018-12684",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-12684",
    "summary": "Out-of-bounds Read in the send_ssi_file function in civetweb.c in CivetWeb through 1.10 allows attackers to cause a Denial of Service or Information Disclosure via a crafted SSI file.",
    "evidence": "osv:CVE-2018-12684",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-12684",
      "aliases": [
        "CVE-2018-12684"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/civetweb/civetweb",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "0f1b43536d97d9311c73b658b86a9d44be9e5e82"
                },
                {
                  "fixed": "8fd069f6dedb064339f1091069ac96f3f8bdb552"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:civetweb_project:civetweb:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.10"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "8fd069f6dedb064339f1091069ac96f3f8bdb552"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.10",
            "v1.9.1",
            "v1.9",
            "v1.8",
            "v1.7",
            "v1.6",
            "v1.5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-12684.json",
            "vanir_signatures": [
              {
                "id": "CVE-2018-12684-3d532852",
                "digest": {
                  "length": 1472,
                  "function_hash": "119767963597498349075607844267823066184"
                },
                "source": "https://github.com/civetweb/civetweb/commit/8fd069f6dedb064339f1091069ac96f3f8bdb552",
                "target": {
                  "file": "src/civetweb.c",
                  "function": "send_ssi_file"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2018-12684-52dfee3c",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "172200892102564149905183411818307634882",
                    "72292759806246949969472507656980838155",
                    "235219493032028816082565176526409381387",
                    "256011461020833046236690677893975971495",
                    "286146812713583773153701970991195951009",
                    "100163630627650712582206041520738986959",
                    "275396511891190691215755055393810129830"
                  ]
                },
                "source": "https://github.com/civetweb/civetweb/commit/8fd069f6dedb064339f1091069ac96f3f8bdb552",
                "target": {
                  "file": "src/civetweb.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:27:09Z"
          }
        }
      ],
      "modified": "2026-10-20T13:27:09.544608447Z",
      "provider": "osv",
      "references": [
        "https://github.com/civetweb/civetweb/issues/633",
        "https://github.com/civetweb/civetweb/commit/8fd069f6dedb064339f1091069ac96f3f8bdb552"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-12684",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387698,
  "published_at": "2018-06-22T19:29:00.267+00:00"
}