FKIE_CVE-2024-45781

Vulnerability from fkie_nvd - Published: 2025-02-18 20:15 - Updated: 2025-09-18 09:15
Severity ?
6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
A flaw was found in grub2. When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing data integrity issues and eventually allowing an attacker to circumvent secure boot protections.
References
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:16154
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:6990
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2024-45781
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2345857
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in grub2. When reading a symbolic link\u0027s name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing data integrity issues and eventually allowing an attacker to circumvent secure boot protections."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 un defecto en Grub2. Al leer el nombre de un enlace simb\u00f3lico de un sistema de archivos UFS, Grub2 no puede validar la longitud de la cadena tomada como una entrada. La falta de validaci\u00f3n puede conducir a un mont\u00f3n fuera de los l\u00edmites Escribir, causando problemas de integridad de datos y eventualmente permitiendo que un atacante elude las protecciones seguras de arranque."
    }
  ],
  "id": "CVE-2024-45781",
  "lastModified": "2025-09-18T09:15:34.603",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 0.8,
        "impactScore": 5.9,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-02-18T20:15:19.450",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:16154"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2025:6990"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/security/cve/CVE-2024-45781"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2345857"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}


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