{
  "threat_severity" : "Low",
  "public_date" : "2023-10-03T00:00:00Z",
  "bugzilla" : {
    "description" : "grub2: Out-of-bounds write at fs/ntfs.c may lead to unsigned code execution",
    "id" : "2236613",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2236613"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.5",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-122",
  "details" : [ "An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a result, arbitrary code execution and secure boot protection bypass may be achieved.", "An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the UEFI firmware heap metadata. As a result, arbitrary code execution and secure boot protection bypass may be achieved." ],
  "statement" : "This vulnerability is considered as 'Low' severity by Red Hat as the NTFS module is not shipped as part of Red Hat's signed grub2 image.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 8",
    "release_date" : "2024-05-22T00:00:00Z",
    "advisory" : "RHSA-2024:3184",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8",
    "package" : "grub2-1:2.02-156.el8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2024-04-30T00:00:00Z",
    "advisory" : "RHSA-2024:2456",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "grub2-1:2.06-77.el9"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Out of support scope",
    "package_name" : "grub2",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2023-4692\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-4692\nhttps://dfir.ru/2023/10/03/cve-2023-4692-cve-2023-4693-vulnerabilities-in-the-grub-boot-manager/\nhttps://lists.gnu.org/archive/html/grub-devel/2023-10/msg00028.html\nhttps://seclists.org/oss-sec/2023/q4/37" ],
  "name" : "CVE-2023-4692",
  "csaw" : false
}