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CVE-2024-2494

Estado: AplazadaMedia (6.2)—

A flaw was found in the RPC library APIs of libvirt. The RPC server deserialization code allocates memory for arrays before the non-negative length check is performed by the C API entry points. Passing a negative length to the g_new0 function results in a crash due to the negative length being treated as a huge positive number. This flaw allows a local, unprivileged user to perform a denial of service attack by causing the libvirt daemon to crash.

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)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Libvirt — LibvirtAI

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2024-2494",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-05-01T15:14:30.397427Z"
        }
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    "cvssMetricV31": [
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        "cvssData": {
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          "baseScore": 6.2,
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          "vectorString": "CVSS:3.1/AV:L/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": 2.5
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      "affectedData": [
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              "version": "9.0.0",
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  "published": "2024-03-21T14:15:10.350",
  "references": [
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2270115",
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      "url": "https://lists.libvirt.org/archives/list/devel@lists.libvirt.org/thread/BKRQXPLPC6B7FLHJXSBQYW7HNDEBW6RJ/",
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      "source": "secalert@redhat.com",
      "description": [
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          "value": "CWE-789"
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  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in the RPC library APIs of libvirt. The RPC server deserialization code allocates memory for arrays before the non-negative length check is performed by the C API entry points. Passing a negative length to the g_new0 function results in a crash due to the negative length being treated as a huge positive number. This flaw allows a local, unprivileged user to perform a denial of service attack by causing the libvirt daemon to crash."
    },
    {
      "lang": "es",
      "value": "Se encontró una falla en las API de la librería RPC de libvirt. El código de deserialización del servidor RPC asigna memoria para las matrices antes de que los puntos de entrada de la API de C realicen la verificación de longitud no negativa. Pasar una longitud negativa a la función g_new0 provoca un bloqueo debido a que la longitud negativa se trata como un número positivo enorme. Esta falla permite que un usuario local sin privilegios realice un ataque de denegación de servicio provocando la falla del demonio libvirt."
    }
  ],
  "lastModified": "2026-06-17T07:24:39.013",
  "sourceIdentifier": "secalert@redhat.com"
}