FKIE_CVE-2024-11991

Vulnerability from fkie_nvd - Published: 2024-12-09 15:15 - Updated: 2025-12-08 18:51
Severity ?
5.6 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Summary
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.
References
6b35d637-e00f-4228-858c-b20ad6e1d07bhttps://github.com/dfinity/motoko/pull/4677Issue Tracking, Patch
6b35d637-e00f-4228-858c-b20ad6e1d07bhttps://github.com/dfinity/motoko/security/advisories/GHSA-9rhg-3qf8-hrv3Vendor Advisory
Impacted products
Vendor Product Version
dfinity motoko *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:dfinity:motoko:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "00F86BCE-31BC-463B-8CF2-9F581168793D",
              "versionEndExcluding": "0.13.4",
              "versionStartIncluding": "0.9.0",
              "vulnerable": true
            }
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          "negate": false,
          "operator": "OR"
        }
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Motoko\u0027s 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\u0027s 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."
    }
  ],
  "id": "CVE-2024-11991",
  "lastModified": "2025-12-08T18:51:42.820",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.6,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.4,
        "source": "6b35d637-e00f-4228-858c-b20ad6e1d07b",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.5,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-12-09T15:15:12.203",
  "references": [
    {
      "source": "6b35d637-e00f-4228-858c-b20ad6e1d07b",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "url": "https://github.com/dfinity/motoko/pull/4677"
    },
    {
      "source": "6b35d637-e00f-4228-858c-b20ad6e1d07b",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/dfinity/motoko/security/advisories/GHSA-9rhg-3qf8-hrv3"
    }
  ],
  "sourceIdentifier": "6b35d637-e00f-4228-858c-b20ad6e1d07b",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-908"
        }
      ],
      "source": "6b35d637-e00f-4228-858c-b20ad6e1d07b",
      "type": "Secondary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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