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CVE-2018-10191

Estado: ModificadaCrítica (9.8)—

In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrb_vm_exec() when handling OP_GETUPVAR in the presence of deep scope nesting, resulting in a use-after-free. An attacker that can cause Ruby code to be run can use this to possibly execute arbitrary code.

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 (2)

Debian — Debian LinuxMruby — Mruby

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2018-10191",
  "cveTags": [],
  "metrics": {
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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  "vulnStatus": "Modified",
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      "lang": "en",
      "value": "In versions of mruby up to and including 1.4.0, an integer overflow exists in src/vm.c::mrb_vm_exec() when handling OP_GETUPVAR in the presence of deep scope nesting, resulting in a use-after-free. An attacker that can cause Ruby code to be run can use this to possibly execute arbitrary code."
    },
    {
      "lang": "es",
      "value": "En las versiones de mruby hasta, e incluyendo, la versión 1.4.0, existe un desbordamiento de enteros en src/vm.c::mrb_vm_exec() al gestionar OP_GETUPVAR en presencia de una anidación profunda del ámbito, lo que resulta en un uso de memoria previamente liberada. Un atacante que pueda hacer que se ejecute código Ruby puede aprovecharse de esto para ejecutar código arbitrario."
    }
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  "lastModified": "2026-06-17T01:33:38.970",
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