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CVE-2014-8595

Estado: ModificadaBaja (1.9)—

El fichero arch/x86/x86_emulate.c in Xen 3.2.1 hasta 4.4.x no comprueba correctamente los privilegios, lo que permite a los usuarios invitados HVM locales conseguir privilegios o causar una denegación de servicio (caída) a través de una instrucción manipulada de rama lejana (1) CALL, (2) JMP, (3) RETF, (4) LCALL, (5) LJMP, o (6) LRET.

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 (3)

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2014-8595",
  "cveTags": [],
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        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 1.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.4,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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      "affectedData": [
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              "version": "n/a"
            }
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  "published": "2014-11-19T18:59:11.707",
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      "description": [
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          "lang": "en",
          "value": "CWE-17"
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      "lang": "en",
      "value": "arch/x86/x86_emulate/x86_emulate.c in Xen 3.2.1 through 4.4.x does not properly check privileges, which allows local HVM guest users to gain privileges or cause a denial of service (crash) via a crafted (1) CALL, (2) JMP, (3) RETF, (4) LCALL, (5) LJMP, or (6) LRET far branch instruction."
    },
    {
      "lang": "es",
      "value": "El fichero arch/x86/x86_emulate.c in Xen 3.2.1 hasta 4.4.x no comprueba correctamente los privilegios, lo que permite a los usuarios invitados HVM locales conseguir privilegios o causar una denegación de servicio (caída) a través de una instrucción manipulada de rama lejana (1) CALL, (2) JMP, (3) RETF, (4) LCALL, (5) LJMP, o (6) LRET."
    }
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  "lastModified": "2026-06-17T00:16:59.637",
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