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CVE-2019-19602

Estado: ModificadaMedia (6.1)—

La función fpregs_state_valid en el archivo arch/x86/include/asm/fpu/internal.h en el kernel de Linux versiones anteriores a 5.4.2, cuando es usado GCC versión 9, permite a atacantes dependiendo del contexto causar una denegación de servicio (corrupción de memoria) o posiblemente tener otros impactos no especificados debido a un almacenamiento en caché incorrecto de fpu_fpregs_owner_ctx, como es demostrado por el manejo inapropiado de la preferencia no cooperativa basada en señal en Go versiones 1.14 preliminares a amd64, también se conoce como CID-59c4 anywhere53abc.

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)

Canonical — Ubuntu LinuxLinux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2019-19602",
  "cveTags": [],
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          "baseScore": 5.4,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "COMPLETE"
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        "acInsufInfo": false,
        "impactScore": 7.8,
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        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.4,
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
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  "published": "2019-12-05T14:15:09.257",
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          "value": "CWE-119"
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      "lang": "en",
      "value": "fpregs_state_valid in arch/x86/include/asm/fpu/internal.h in the Linux kernel before 5.4.2, when GCC 9 is used, allows context-dependent attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact because of incorrect fpu_fpregs_owner_ctx caching, as demonstrated by mishandling of signal-based non-cooperative preemption in Go 1.14 prereleases on amd64, aka CID-59c4bd853abc."
    },
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      "lang": "es",
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    }
  ],
  "lastModified": "2026-06-17T02:26:55.763",
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