{
  "id": "CVE-2024-11991",
  "sourceIdentifier": "6b35d637-e00f-4228-858c-b20ad6e1d07b",
  "published": "2024-12-09T15:15:12.203",
  "lastModified": "2024-12-09T15:15:12.203",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "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 podr\u00eda 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."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "6b35d637-e00f-4228-858c-b20ad6e1d07b",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "baseScore": 5.6,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.4
      }
    ]
  },
  "weaknesses": [
    {
      "source": "6b35d637-e00f-4228-858c-b20ad6e1d07b",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-908"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/dfinity/motoko/pull/4677",
      "source": "6b35d637-e00f-4228-858c-b20ad6e1d07b"
    },
    {
      "url": "https://github.com/dfinity/motoko/security/advisories/GHSA-9rhg-3qf8-hrv3",
      "source": "6b35d637-e00f-4228-858c-b20ad6e1d07b"
    }
  ]
}