{
  "id": "CVE-2021-40648",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2022-09-09T18:15:09.247",
  "lastModified": "2022-09-14T19:52:41.313",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "In man2html 1.6g, a filename can be created to overwrite the previous size parameter of the next chunk and the fd, bk, fd_nextsize, bk_nextsize of the current chunk. The next chunk is then freed later on, causing a freeing of an arbitrary amount of memory."
    },
    {
      "lang": "es",
      "value": "En man2html versi\u00f3n 1.6g, puede crearse un nombre de archivo para sobrescribir el par\u00e1metro de tama\u00f1o anterior del siguiente chunk y el fd, bk, fd_nextsize, bk_nextsize del chunk actual. El siguiente chunk es liberado posteriormente, causando una liberaci\u00f3n de una cantidad arbitraria de memoria"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:man2html_project:man2html:1.6g:*:*:*:*:*:*:*",
              "matchCriteriaId": "843C1C93-461D-413C-B54F-2642C98DD0F7"
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  ],
  "references": [
    {
      "url": "https://gist.github.com/untaman/cb58123fe89fc65e3984165db5d40933",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    }
  ]
}