ghsa-r62p-gp92-7444
Vulnerability from github
Published
2023-10-25 18:32
Modified
2025-11-04 21:30
Severity ?
5.3 (Medium) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
Details

An out-of-bounds read flaw was found on grub2's NTFS filesystem driver. This issue may allow a physically present attacker to present a specially crafted NTFS file system image to read arbitrary memory locations. A successful attack allows sensitive data cached in memory or EFI variable values to be leaked, presenting a high Confidentiality risk.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-4693"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-10-25T18:17:41Z",
    "severity": "MODERATE"
  },
  "details": "An out-of-bounds read flaw was found on grub2\u0027s NTFS filesystem driver. This issue may allow a physically present attacker to present a specially crafted NTFS file system image to read arbitrary memory locations. A successful attack allows sensitive data cached in memory or EFI variable values to be leaked, presenting a high Confidentiality risk.",
  "id": "GHSA-r62p-gp92-7444",
  "modified": "2025-11-04T21:30:45Z",
  "published": "2023-10-25T18:32:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4693"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:2456"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2024:3184"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2023-4693"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2238343"
    },
    {
      "type": "WEB",
      "url": "https://dfir.ru/2023/10/03/cve-2023-4692-cve-2023-4693-vulnerabilities-in-the-grub-boot-manager"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00007.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FUU42E7CPYLATXOYVYNW6YTXXULAOV6L"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OIRJ5UZRXX2KLR4IKBJEQUNGOCXMMDLY"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PERFILCHFEUGG3OAMC6W55P6DDIBZK4Q"
    },
    {
      "type": "WEB",
      "url": "https://lists.gnu.org/archive/html/grub-devel/2023-10/msg00028.html"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/oss-sec/2023/q4/37"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202311-14"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20231208-0002"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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