CVE-2023-4692 (GCVE-0-2023-4692)
Vulnerability from cvelistv5
Published
2023-10-25 10:27
Modified
2025-11-07 00:30
Severity ?
7.5 (High) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-122 - Heap-based Buffer Overflow
Summary
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.
References
Impacted products
Vendor Product Version
Patch: 2.12   < *
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   Red Hat Red Hat Enterprise Linux 8 Unaffected: 1:2.02-156.el8   < *
    cpe:/o:redhat:enterprise_linux:8::baseos
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   Red Hat Red Hat Enterprise Linux 9 Unaffected: 1:2.06-77.el9   < *
    cpe:/o:redhat:enterprise_linux:9::baseos
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   Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
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