{
  "id": "CVE-2021-44718",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2022-09-02T12:15:09.337",
  "lastModified": "2024-11-21T06:31:27.270",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "wolfSSL through 5.0.0 allows an attacker to cause a denial of service and infinite loop in the client component by sending crafted traffic from a Machine-in-the-Middle (MITM) position. The root cause is that the client module accepts TLS messages that normally are only sent to TLS servers."
    },
    {
      "lang": "es",
      "value": "wolfSSL versiones hasta 5.0.0, permite a un atacante causar una denegaci\u00f3n de servicio y un bucle infinito en el componente cliente mediante el env\u00edo de tr\u00e1fico dise\u00f1ado desde una posici\u00f3n de tipo Machine-in-the-Middle (MITM). La causa principal es que el m\u00f3dulo cliente acepta mensajes TLS que normalmente s\u00f3lo son enviados a servidores TLS"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-835"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "5.0.0",
              "matchCriteriaId": "4A2BB256-A089-42D8-AA9D-BB194B1213A2"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/wolfSSL/wolfssl/releases",
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.wolfssl.com/docs/security-vulnerabilities/",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://github.com/wolfSSL/wolfssl/releases",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.wolfssl.com/docs/security-vulnerabilities/",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}