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CVE-2024-11991

Estado: AnalizadaMedia (6.5)—

Motoko's incremental garbage collector is impacted by an uninitialized memory access bug, caused by incorrect use of write barriers in a few locations. This vulnerability could potentially allow unauthorized read or write access to a Canister's memory. However, exploiting this bug requires the Canister to enable the incremental garbage collector or enhanced orthogonal persistence, which are non-default features in Motoko.

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)

Dfinity — Motoko

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2024-11991",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-11991",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-12-09T15:07:27.354775Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "6b35d637-e00f-4228-858c-b20ad6e1d07b",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.6,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 3.4,
        "exploitabilityScore": 2.2
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "6b35d637-e00f-4228-858c-b20ad6e1d07b",
      "affectedData": [
        {
          "vendor": "Internet Computer",
          "product": "Motoko",
          "versions": [
            {
              "status": "affected",
              "version": "0.9.0",
              "versionType": "semver",
              "lessThanOrEqual": "0.13.3"
            }
          ],
          "packageName": "moc",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2024-12-09T15:15:12.203",
  "references": [
    {
      "url": "https://github.com/dfinity/motoko/pull/4677",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "source": "6b35d637-e00f-4228-858c-b20ad6e1d07b"
    },
    {
      "url": "https://github.com/dfinity/motoko/security/advisories/GHSA-9rhg-3qf8-hrv3",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "6b35d637-e00f-4228-858c-b20ad6e1d07b"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "6b35d637-e00f-4228-858c-b20ad6e1d07b",
      "description": [
        {
          "lang": "en",
          "value": "CWE-908"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Motoko's incremental garbage collector is impacted by an uninitialized memory access bug, caused by incorrect use of write barriers in a few locations. This vulnerability could potentially allow unauthorized read or write access to a Canister's memory. However, exploiting this bug requires the Canister to enable the incremental garbage collector or enhanced orthogonal persistence, which are non-default features in Motoko."
    },
    {
      "lang": "es",
      "value": "El recolector de basura incremental de Motoko se ve afectado por un error de acceso a memoria no inicializada, causado por el uso incorrecto de barreras de escritura en algunas ubicaciones. Esta vulnerabilidad podría permitir el acceso de lectura o escritura no autorizado a la memoria de un contenedor. Sin embargo, para explotar este error, es necesario que el contenedor habilite el recolector de basura incremental o la persistencia ortogonal mejorada, que son funciones no predeterminadas en Motoko."
    }
  ],
  "lastModified": "2026-06-17T06:58:50.457",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:dfinity:motoko:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "00F86BCE-31BC-463B-8CF2-9F581168793D",
              "versionEndExcluding": "0.13.4",
              "versionStartIncluding": "0.9.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "6b35d637-e00f-4228-858c-b20ad6e1d07b"
}