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CVE-2021-38380

Estado: ModificadaAlta (7.5)—

Live555 versiones hasta 1.08, no maneja apropiadamente grandes peticiones para el mismo flujo de MP3, conllevando a una recursión y una lectura excesiva del búfer en la región stack 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-2021-38380",
  "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": "2021-08-10T18:15:07.347",
  "references": [
    {
      "url": "http://lists.live555.com/pipermail/live-devel/2021-August/021954.html",
      "tags": [
        "Exploit",
        "Mailing List",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.live555.com/liveMedia/public/changelog.txt#%5B2021.08.04%5D",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.live555.com/pipermail/live-devel/2021-August/021954.html",
      "tags": [
        "Exploit",
        "Mailing List",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.live555.com/liveMedia/public/changelog.txt#%5B2021.08.04%5D",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Live555 through 1.08 mishandles huge requests for the same MP3 stream, leading to recursion and s stack-based buffer over-read. An attacker can leverage this to launch a DoS attack."
    },
    {
      "lang": "es",
      "value": "Live555 versiones hasta 1.08, no maneja apropiadamente grandes peticiones para el mismo flujo de MP3, conllevando a una recursión y una lectura excesiva del búfer en la región stack de la memoria. Un atacante puede aprovechar esto para lanzar un ataque DoS"
    }
  ],
  "lastModified": "2026-06-17T04:01:59.157",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:live555:live555:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AB55807C-0F36-4097-A2BE-299BB1380D41",
              "versionEndExcluding": "2021.08.04"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}