FKIE_CVE-2024-45776

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
When reading the language .mo file in grub_mofile_open(), grub2 fails to verify an integer overflow when allocating its internal buffer. A crafted .mo file may lead the buffer size calculation to overflow, leading to out-of-bound reads and writes. This flaw allows an attacker to leak sensitive data or overwrite critical data, possibly circumventing 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-2024-45776
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2339182
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "When reading the language .mo file in grub_mofile_open(), grub2 fails to verify an integer overflow when allocating its internal buffer. A crafted .mo file may lead the buffer size calculation to overflow, leading to out-of-bound reads and writes. This flaw allows an attacker to leak sensitive data or overwrite critical data, possibly circumventing secure boot protections."
    },
    {
      "lang": "es",
      "value": "Al leer el archivo .mo .mo en Grub_Mofile_Open (), Grub2 no puede verificar un desbordamiento entero al asignar su b\u00fafer interno. Un archivo .mo manipulado puede hacer que se desborde el c\u00e1lculo del tama\u00f1o del b\u00fafer, lo que lleva a lecturas y escrituras fuera de los l\u00edmites. Este defecto permite a un atacante filtrar datos confidenciales o sobrescribir datos cr\u00edticos, y posiblemente eludir protecciones seguras de arranque.\n"
    }
  ],
  "id": "CVE-2024-45776",
  "lastModified": "2025-09-18T09:15:32.970",
  "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": "2025-02-18T20:15:19.313",
  "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-2024-45776"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2339182"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}


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