fkie_cve-2024-45781
Vulnerability from fkie_nvd
Published
2025-02-18 20:15
Modified
2025-02-24 19:15
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/security/cve/CVE-2024-45781
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2345857
Impacted products
Vendor Product Version


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{
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "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.",
      },
      {
         lang: "es",
         value: "Se encontró un defecto en Grub2. Al leer el nombre de un enlace simbólico de un sistema de archivos UFS, Grub2 no puede validar la longitud de la cadena tomada como una entrada. La falta de validación puede conducir a un montón fuera de los límites Escribir, causando problemas de integridad de datos y eventualmente permitiendo que un atacante elude las protecciones seguras de arranque.",
      },
   ],
   id: "CVE-2024-45781",
   lastModified: "2025-02-24T19:15:14.423",
   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/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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