{
  "id": "CVE-2015-8370",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2015-12-16T21:59:04.063",
  "lastModified": "2018-10-09T19:58:30.253",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "Multiple integer underflows in Grub2 1.98 through 2.02 allow physically proximate attackers to bypass authentication, obtain sensitive information, or cause a denial of service (disk corruption) via backspace characters in the (1) grub_username_get function in grub-core/normal/auth.c or the (2) grub_password_get function in lib/crypto.c, which trigger an \"Off-by-two\" or \"Out of bounds overwrite\" memory error."
    },
    {
      "lang": "es",
      "value": "M\u00faltiple desbordamiento inferior de entero en Grub2 1.98 hasta la versi\u00f3n 2.02 permite a atacantes f\u00edsicamente pr\u00f3ximos eludir la autenticaci\u00f3n, obtener informaci\u00f3n sensible o causar una denegaci\u00f3n de servicio (corrupci\u00f3n de disco) a trav\u00e9s del car\u00e1cter backspace en la funci\u00f3n (1) grub_username_get en grub-core/normal/auth.c o (2) grub_password_get en lib/crypto.c, lo que desencadena un error de memoria 'Off-by-two' o 'Out of bounds overwrite'."
    }
  ],
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        "type": "Primary",
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          "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
          "accessVector": "LOCAL",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 6.9
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 3.4,
        "impactScore": 10.0,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
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          "lang": "en",
          "value": "CWE-264"
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    }
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  "references": [
    {
      "url": "http://hmarco.org/bugs/CVE-2015-8370-Grub2-authentication-bypass.html",
      "source": "cve@mitre.org",
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00041.html",
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00043.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00044.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00003.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://packetstormsecurity.com/files/134831/Grub2-Authentication-Bypass.html",
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    {
      "url": "http://rhn.redhat.com/errata/RHSA-2015-2623.html",
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    {
      "url": "http://seclists.org/fulldisclosure/2015/Dec/69",
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      "url": "http://www.debian.org/security/2015/dsa-3421",
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    {
      "url": "http://www.openwall.com/lists/oss-security/2015/12/15/6",
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    },
    {
      "url": "http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html",
      "source": "cve@mitre.org",
      "tags": [
        "Patch"
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    {
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html",
      "source": "cve@mitre.org"
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    {
      "url": "http://www.securityfocus.com/archive/1/537115/100/0/threaded",
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    },
    {
      "url": "http://www.securityfocus.com/bid/79358",
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    {
      "url": "http://www.securitytracker.com/id/1034422",
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    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2836-1",
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    {
      "url": "https://security.gentoo.org/glsa/201512-03",
      "source": "cve@mitre.org"
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}