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CVE-2021-41396

Estado: ModificadaAlta (7.5)—

Live555 versiones hasta 1.08, no maneja apropiadamente las conexiones de socket. Un gran número de conexiones de socket entrantes en poco tiempo invoca el módulo de administración de errores, en el que se produce un desbordamiento de búfer en la región heap de la memoria. Un atacante puede aprovechar esto para lanzar un ataque DoS

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Live555 — Live555

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-41396",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-07-12T14:15:14.797",
  "references": [
    {
      "url": "http://lists.live555.com/pipermail/live-devel/2021-September/021994.html",
      "tags": [
        "Exploit",
        "Mailing List",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.live555.com/liveMedia/public/changelog.txt",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.live555.com/pipermail/live-devel/2021-September/021994.html",
      "tags": [
        "Exploit",
        "Mailing List",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.live555.com/liveMedia/public/changelog.txt",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Live555 through 1.08 does not handle socket connections properly. A huge number of incoming socket connections in a short time invokes the error-handling module, in which a heap-based buffer overflow happens. An attacker can leverage this to launch a DoS attack."
    },
    {
      "lang": "es",
      "value": "Live555 versiones hasta 1.08, no maneja apropiadamente las conexiones de socket. Un gran número de conexiones de socket entrantes en poco tiempo invoca el módulo de administración de errores, en el que se produce un desbordamiento de búfer en la región heap de la memoria. Un atacante puede aprovechar esto para lanzar un ataque DoS"
    }
  ],
  "lastModified": "2026-06-17T04:08:28.523",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:live555:live555:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AC5D5907-70E1-4D18-A73A-CC0E0AD83965",
              "versionEndIncluding": "1.08"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}