Security advisory

{
  "id": "032628f11ae3f1b7c76a5695e7ed003137a7a8b75f1d35c1742dad8d16af5a01",
  "url": "https://osv.dev/vulnerability/CVE-2017-14061",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-14061",
    "summary": "Integer overflow in the _isBidi function in bidi.c in Libidn2 before 2.0.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact.",
    "evidence": "osv:CVE-2017-14061",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2017-14061",
      "aliases": [
        "CVE-2017-14061"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/libidn/libidn2",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "3722c6c61e0808dcefeb1d633172dee833533901"
                },
                {
                  "fixed": "16853b6973a1e72fee2b7cccda85472cb9951305"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:gnu:libidn2:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.0.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "16853b6973a1e72fee2b7cccda85472cb9951305"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "libidn2-2.0.3",
            "libidn2-2.0.2",
            "libidn2-2.0.1",
            "libidn2-2.0.0",
            "libidn2-0.16",
            "libidn2-0.15",
            "libidn2-0.14",
            "libidn2-0.13",
            "libidn2-0.12",
            "libidn2-0.11",
            "libidn2-0.10",
            "libidn2-0.9",
            "libidn2-0.8",
            "libidn2-0.7",
            "libidn2-0.6",
            "libidn2-0.5",
            "libidn2-0.4",
            "libidn2-0.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-14061.json",
            "vanir_signatures": [
              {
                "id": "CVE-2017-14061-2c4fa394",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "160679738170611937874974878731048036454",
                    "87206294603082672992889430948119318764",
                    "335803293428719535057088299753648925603",
                    "8436034580668238460087211865216003011",
                    "72556297230441291636993969941997891095",
                    "153368568659221122599599095595139775901"
                  ]
                },
                "source": "https://gitlab.com/libidn/libidn2@16853b6973a1e72fee2b7cccda85472cb9951305",
                "target": {
                  "file": "lib/bidi.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2017-14061-b7cfb5fd",
                "digest": {
                  "length": 216,
                  "function_hash": "29905345154764789186271999601131890633"
                },
                "source": "https://gitlab.com/libidn/libidn2@16853b6973a1e72fee2b7cccda85472cb9951305",
                "target": {
                  "file": "lib/bidi.c",
                  "function": "_isBidi"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:21:11Z"
          }
        }
      ],
      "modified": "2026-10-20T13:21:11.767953874Z",
      "provider": "osv",
      "references": [
        "https://gitlab.com/libidn/libidn2/blob/master/NEWS",
        "https://gitlab.com/libidn/libidn2/commit/16853b6973a1e72fee2b7cccda85472cb9951305"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-14061",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387539,
  "published_at": "2017-08-31T16:29:00.223+00:00"
}