FKIE_CVE-2017-1000363

Vulnerability from fkie_nvd - Published: 2017-07-17 13:18 - Updated: 2026-06-17 00:59
Summary
Linux drivers/char/lp.c Out-of-Bounds Write. Due to a missing bounds check, and the fact that parport_ptr integer is static, a 'secure boot' kernel command line adversary (can happen due to bootloader vulns, e.g. Google Nexus 6's CVE-2016-10277, where due to a vulnerability the adversary has partial control over the command line) can overflow the parport_nr array in the following code, by appending many (>LP_NO) 'lp=none' arguments to the command line.

{
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Linux drivers/char/lp.c Out-of-Bounds Write. Due to a missing bounds check, and the fact that parport_ptr integer is static, a \u0027secure boot\u0027 kernel command line adversary (can happen due to bootloader vulns, e.g. Google Nexus 6\u0027s CVE-2016-10277, where due to a vulnerability the adversary has partial control over the command line) can overflow the parport_nr array in the following code, by appending many (\u003eLP_NO) \u0027lp=none\u0027 arguments to the command line."
    },
    {
      "lang": "es",
      "value": "Una escritura fuera de l\u00edmites en el archivo drivers/char/lp.c de Linux, Debido a la falta de comprobaci\u00f3n de l\u00edmites, y al hecho de que el entero parport_ptr es est\u00e1tico, un adversario de l\u00ednea de comando del kernel \"secure boot\" (puede ocurrir debido a vulnerabilidades del cargador de arranque, por ejemplo, CVE-2016-10277 de Google Nexus 6, donde debido a una vulnerabilidad el adversario tiene control parcial sobre la l\u00ednea de comando) puede desbordar la matriz parport_nr en el siguiente c\u00f3digo, mediante la incorporaci\u00f3n muchos argumentos (mayor que LP_NO) \u0027lp=none\u0027 hacia la l\u00ednea de comando."
    }
  ],
  "id": "CVE-2017-1000363",
  "lastModified": "2026-06-17T00:59:01.790",
  "metrics": {
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        "baseSeverity": "HIGH",
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          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.2,
          "confidentialityImpact": "COMPLETE",
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          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
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          "confidentialityImpact": "HIGH",
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          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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        "source": "nvd@nist.gov",
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  "published": "2017-07-17T13:18:18.593",
  "references": [
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      "source": "cve@mitre.org",
      "tags": [
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      "url": "http://www.debian.org/security/2017/dsa-3945"
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  "vulnStatus": "Modified",
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          "value": "CWE-787"
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}



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