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CVE-2022-49122

Estado: AnalizadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

dm ioctl: prevent potential spectre v1 gadget

It appears like cmd could be a Spectre v1 gadget as it's supplied by a user and used as an array index. Prevent the contents of kernel memory from being leaked to userspace via speculative execution by using array_index_nospec.

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)

CWE

Referencias

JSON original (NVD)

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          "version": "3.1",
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
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  "published": "2025-02-26T07:00:49.540",
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm ioctl: prevent potential spectre v1 gadget\n\nIt appears like cmd could be a Spectre v1 gadget as it's supplied by a\nuser and used as an array index. Prevent the contents of kernel memory\nfrom being leaked to userspace via speculative execution by using\narray_index_nospec."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dm ioctl: evitar un posible gadget de Spectre v1 Parece que cmd podría ser un gadget de Spectre v1, ya que lo proporciona un usuario y lo utiliza como índice de matriz. Evite que el contenido de la memoria del kernel se filtre al espacio de usuario mediante una ejecución especulativa utilizando array_index_nospec."
    }
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