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CVE-2019-11924

Estado: ModificadaAlta (7.5)—

A peer could send empty handshake fragments containing only padding which would be kept in memory until a full handshake was received, resulting in memory exhaustion. This issue affects versions v2019.01.28.00 and above of fizz, until v2019.08.05.00.

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)

Facebook — Fizz

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2019-11924",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/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-assign@fb.com",
      "affectedData": [
        {
          "vendor": "Facebook",
          "product": "fizz",
          "versions": [
            {
              "status": "affected",
              "version": "v2019.08.12.00"
            },
            {
              "status": "affected",
              "version": "v2019.01.28.00",
              "lessThan": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2019-08-20T20:15:11.290",
  "references": [
    {
      "url": "https://github.com/facebookincubator/fizz/commit/3eaddb33619eaaf74a760872850c550ad8f5c52f",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve-assign@fb.com"
    },
    {
      "url": "https://github.com/facebookincubator/fizz/commit/6bf67137ef1ee5cd70c842b014c322b7deaf994b",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve-assign@fb.com"
    },
    {
      "url": "https://www.facebook.com/security/advisories/cve-2019-11924",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve-assign@fb.com"
    },
    {
      "url": "https://github.com/facebookincubator/fizz/commit/3eaddb33619eaaf74a760872850c550ad8f5c52f",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/facebookincubator/fizz/commit/6bf67137ef1ee5cd70c842b014c322b7deaf994b",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.facebook.com/security/advisories/cve-2019-11924",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A peer could send empty handshake fragments containing only padding which would be kept in memory until a full handshake was received, resulting in memory exhaustion. This issue affects versions v2019.01.28.00 and above of fizz, until v2019.08.05.00."
    },
    {
      "lang": "es",
      "value": "Un peer podría enviar fragmentos vacíos de negociación que contienen solo relleno (paddig) que se mantendrían en la memoria hasta que se recibiera una negociación completa, resultando en el agotamiento de la memoria. Este problema afecta a las versiones v2019.01.28.00 y superiores de fizz, hasta la versión v2019.08.05.00."
    }
  ],
  "lastModified": "2026-06-17T02:13:50.640",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:facebook:fizz:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B867692C-91C4-4E64-8B9C-1E5FAC5A5070",
              "versionEndIncluding": "2019.08.05.00",
              "versionStartIncluding": "2019.01.28.00"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve-assign@fb.com"
}