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.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-3605-1 | grub2 security update |
Debian DSA |
DSA-5519-1 | grub2 security update |
EUVD |
EUVD-2023-54543 | 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. |
Ubuntu USN |
USN-6410-1 | GRUB2 vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 05 Nov 2025 05:30:00 +0900
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|---|---|---|
| References |
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Sat, 18 Oct 2025 03:15:00 +0900
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|---|---|---|
| Metrics |
ssvc
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Fri, 22 Nov 2024 21:00:00 +0900
Tue, 17 Sep 2024 01:30:00 +0900
Projects
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2025-11-07T00:30:50.177Z
Reserved: 2023-08-31T21:53:09.692Z
Link: CVE-2023-4692
Updated: 2025-11-04T19:25:43.776Z
Status : Modified
Published: 2023-10-25T18:17:41.743
Modified: 2025-11-04T20:17:11.233
Link: CVE-2023-4692
OpenCVE Enrichment
No data.
Debian DLA
Debian DSA
EUVD
Ubuntu USN