{
  "id": "CVE-2017-8284",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2017-04-26T14:59:00.270",
  "lastModified": "2024-11-21T03:33:41.913",
  "vulnStatus": "Modified",
  "cveTags": [
    {
      "sourceIdentifier": "cve@mitre.org",
      "tags": [
        "disputed"
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The disas_insn function in target/i386/translate.c in QEMU before 2.9.0, when TCG mode without hardware acceleration is used, does not limit the instruction size, which allows local users to gain privileges by creating a modified basic block that injects code into a setuid program, as demonstrated by procmail. NOTE: the vendor has stated \"this bug does not violate any security guarantees QEMU makes."
    },
    {
      "lang": "es",
      "value": "** EN DISPUTA ** La funci\u00f3n disas_insn en target / i386 / translate.c en QEMU para las versiones anteriores a la 2.9.0, cuando se utiliza el modo TCG sin aceleraci\u00f3n de hardware, no limita el tama\u00f1o de instrucci\u00f3n, lo que permite a los usuarios locales obtener privilegios creando un bloque b\u00e1sico modificado que inyecta c\u00f3digo en un programa setuid, como lo demuestra procmail. NOTA: el proveedor ha declarado que \"este error no viola las garant\u00edas de seguridad de QEMU.\""
    }
  ],
  "metrics": {
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        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
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        "exploitabilityScore": 1.0,
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          "authentication": "NONE",
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        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 3.4,
        "impactScore": 10.0,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
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    {
      "source": "nvd@nist.gov",
      "type": "Primary",
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          "value": "CWE-94"
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  "references": [
    {
      "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=1122",
      "source": "cve@mitre.org",
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