{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.5.8"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "fb671aa5d1b4317fabe5aab3e3713ca4b5798f95"
            },
            {
              "fixed": "62acb7753b0e3c0d3ab3c15057b0a65222313334"
            }
          ],
          "repo": "https://github.com/jsummers/deark",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "In Deark before v1.5.8, a specially crafted input file can cause a division by zero in (src/fmtutil.c) because of the value of pixelsize.",
  "id": "CVE-2021-28856",
  "modified": "2026-04-01T23:09:50.457392407Z",
  "published": "2021-04-14T17:15:14.427Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/fuzzing2026/CVE-PoCs/tree/main/deark-CVE-2021-28856"
    },
    {
      "type": "FIX",
      "url": "https://fatihhcelik.github.io/posts/Division-By-Zero-Deark/"
    },
    {
      "type": "FIX",
      "url": "https://github.com/jsummers/deark/commit/62acb7753b0e3c0d3ab3c15057b0a65222313334"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}