Security advisory

{
  "id": "b0045128d0ffc4fc07233e47abcbf8df7c1fb19a5aee7eaebbc54f1afba71ba3",
  "url": "https://osv.dev/vulnerability/CVE-2017-7962",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-7962",
    "summary": "The iwgif_read_image function in imagew-gif.c in libimageworsener.a in ImageWorsener 1.3.0 allows remote attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted file.",
    "evidence": "osv:CVE-2017-7962",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2017-7962",
      "aliases": [
        "CVE-2017-7962"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/jsummers/imageworsener",
              "type": "GIT",
              "events": [
                {
                  "introduced": "fbfb0d477fb459eaf2f8e0868b87be0739133bef"
                },
                {
                  "last_affected": "fbfb0d477fb459eaf2f8e0868b87be0739133bef"
                },
                {
                  "fixed": "ca3356eb49fee03e2eaf6b6aff826988c1122d93"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:entropymine:imageworsener:1.3.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.3.0"
                      },
                      {
                        "last_affected": "1.3.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "ca3356eb49fee03e2eaf6b6aff826988c1122d93"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.3.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-7962.json",
            "vanir_signatures": [
              {
                "id": "CVE-2017-7962-86e775ca",
                "digest": {
                  "length": 1725,
                  "function_hash": "302851320383472191590232637873704531140"
                },
                "source": "https://github.com/jsummers/imageworsener/commit/ca3356eb49fee03e2eaf6b6aff826988c1122d93",
                "target": {
                  "file": "src/imagew-gif.c",
                  "function": "iwgif_read_image"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2017-7962-ba00a213",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "128062224009350537018407221712288824803",
                    "295319742635030786793730408592017202503",
                    "206599785878202985957069950396693650379",
                    "246862335577992734676135847314490833824"
                  ]
                },
                "source": "https://github.com/jsummers/imageworsener/commit/ca3356eb49fee03e2eaf6b6aff826988c1122d93",
                "target": {
                  "file": "src/imagew-gif.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:24:23Z"
          }
        }
      ],
      "modified": "2026-10-20T13:24:23.078153465Z",
      "provider": "osv",
      "references": [
        "https://security.gentoo.org/glsa/201706-06",
        "https://blogs.gentoo.org/ago/2017/04/17/imageworsener-divide-by-zero-in-iwgif_record_pixel-imagew-gif-c/",
        "https://github.com/jsummers/imageworsener/commit/ca3356eb49fee03e2eaf6b6aff826988c1122d93",
        "https://github.com/jsummers/imageworsener/issues/15"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-7962",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387632,
  "published_at": "2017-04-19T15:59:00.24+00:00"
}