{
  "id": "CVE-2021-39593",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2021-09-20T16:15:14.287",
  "lastModified": "2021-09-22T18:59:07.497",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in swftools through 20200710. A NULL pointer dereference exists in the function swf_FontExtract_DefineFontInfo() located in swftext.c. It allows an attacker to cause Denial of Service."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un problema en swftools versiones hasta 20200710. Se presenta una desreferencia del puntero NULL en la funci\u00f3n swf_FontExtract_DefineFontInfo() ubicada en el archivo swftext.c. Permite a un atacante causar una Denegaci\u00f3n de Servicio"
    }
  ],
  "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
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.3
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:swftools:swftools:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "2020-07-10",
              "matchCriteriaId": "192BB2B1-5CB5-4E87-AAB7-51ACC07D8934"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/matthiaskramm/swftools/issues/139",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Third Party Advisory"
      ]
    }
  ]
}