Security advisory

{
  "id": "481ff3f51c07e85b1cee2f9d170a56ac5ed85c4e1cd028db66ede4d373ea881a",
  "url": "https://osv.dev/vulnerability/CVE-2019-17582",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-17582",
    "summary": "A use-after-free in the _zip_dirent_read function of zip_dirent.c in libzip 1.2.0 allows attackers to have an unspecified impact by attempting to unzip a malformed ZIP archive. NOTE: the discoverer states \"This use-after-free is triggered prior to the double free reported in CVE-2017-12858.\"",
    "evidence": "osv:CVE-2019-17582",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2019-17582",
      "aliases": [
        "CVE-2019-17582"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nih-at/libzip",
              "type": "GIT",
              "events": [
                {
                  "introduced": "a23ac8a766c556827255111eb35ba928641efbc8"
                },
                {
                  "last_affected": "a23ac8a766c556827255111eb35ba928641efbc8"
                },
                {
                  "fixed": "2217022b7d1142738656d891e00b3d2d9179b796"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:libzip:libzip:1.2.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.2.0"
                      },
                      {
                        "last_affected": "1.2.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "2217022b7d1142738656d891e00b3d2d9179b796"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.2.0",
            "rel-1-2-0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-17582.json",
            "vanir_signatures": [
              {
                "id": "CVE-2019-17582-11de36c1",
                "digest": {
                  "length": 5237,
                  "function_hash": "247741707400283749085108019441784905923"
                },
                "source": "https://github.com/nih-at/libzip/commit/2217022b7d1142738656d891e00b3d2d9179b796",
                "target": {
                  "file": "lib/zip_dirent.c",
                  "function": "_zip_dirent_read"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2019-17582-f2d51449",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "126407887668340329650951841643656814806",
                    "79489290485161336371396243068446216870",
                    "103867276804264513481566455227706953226",
                    "200745644596356662579889932048953027052",
                    "18703439355701899585658934728937768609",
                    "10360732491339512210894939584152610856"
                  ]
                },
                "source": "https://github.com/nih-at/libzip/commit/2217022b7d1142738656d891e00b3d2d9179b796",
                "target": {
                  "file": "lib/zip_dirent.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:40:57Z"
          }
        }
      ],
      "modified": "2026-10-20T13:40:57.109915841Z",
      "provider": "osv",
      "references": [
        "https://github.com/nih-at/libzip/issues/5",
        "https://libzip.org/libzip-discuss/",
        "https://github.com/nih-at/libzip/commit/2217022b7d1142738656d891e00b3d2d9179b796"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2019-17582",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387955,
  "published_at": "2021-02-09T19:15:12.553+00:00"
}