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CVE-2008-3896

Estado: ModificadaBaja (2.1)—

Grub Legacy 0.97 and earlier stores pre-boot authentication passwords in the BIOS Keyboard buffer and does not clear this buffer before and after use, which allows local users to obtain sensitive information by reading the physical memory locations associated with this buffer.

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 (1)

GNU — Grub Legacy

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2008-3896",
  "cveTags": [],
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 2.1,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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  },
  "affected": [
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      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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  ],
  "published": "2008-09-03T14:12:00.000",
  "references": [
    {
      "url": "http://securityreason.com/securityalert/4204",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://securityreason.com/securityalert/4206",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ivizsecurity.com/preboot-patch.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.ivizsecurity.com/research/preboot/preboot_whitepaper.pdf",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/archive/1/495726/100/0/threaded",
      "source": "cve@mitre.org"
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    {
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
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  ],
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    {
      "lang": "en",
      "value": "Grub Legacy 0.97 and earlier stores pre-boot authentication passwords in the BIOS Keyboard buffer and does not clear this buffer before and after use, which allows local users to obtain sensitive information by reading the physical memory locations associated with this buffer."
    },
    {
      "lang": "es",
      "value": "Grub Legacy 0.97 y versiones anteriores almacena contraseñas de autenticación de pre-arranque en el búfer BIOS Keyboard y no limpia este búfer antes y después del uso, lo cual permite a usuarios locales obtener información sensible leyendo las localizaciones de memoria física asociadas con este búfer."
    }
  ],
  "lastModified": "2026-06-16T22:56:45.750",
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      "comment": "Red Hat does not consider this to be a security issue.  Since these operations can only be executed by root, no trust boundary is crossed as a result of this behaviour.",
      "lastModified": "2009-01-29T01:54:44.843",
      "organization": "Red Hat"
    }
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  "sourceIdentifier": "cve@mitre.org"
}