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CVE-2019-20631

Estado: ModificadaMedia (5.5)—

Se detectó un problema en libgpac.a en GPAC versiones anteriores a 0.8.0, como es demostrado por MP4Box. Contiene una desreferencia del puntero no válida en la función gf_list_count en el archivo utils/list.c que puede causar una denegación de servicio por medio de un archivo MP4 diseñado.

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)

Gpac — Gpac

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2019-20631",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-03-24T19:15:21.133",
  "references": [
    {
      "url": "https://github.com/gpac/gpac/issues/1270",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/gpac/gpac/issues/1270",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-763"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in libgpac.a in GPAC before 0.8.0, as demonstrated by MP4Box. It contains an invalid pointer dereference in gf_list_count in utils/list.c that can cause a denial of service via a crafted MP4 file."
    },
    {
      "lang": "es",
      "value": "Se detectó un problema en libgpac.a en GPAC versiones anteriores a 0.8.0, como es demostrado por MP4Box. Contiene una desreferencia del puntero no válida en la función gf_list_count en el archivo utils/list.c que puede causar una denegación de servicio por medio de un archivo MP4 diseñado."
    }
  ],
  "lastModified": "2026-06-17T02:30:50.373",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "123D0430-86B1-40BF-9B43-C782CC2EDDE8",
              "versionEndExcluding": "0.8.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}