vulnerability
Debian: CVE-2023-4692: grub2 -- security update
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:L/AC:M/Au:M/C:C/I:C/A:C) | Oct 10, 2023 | Oct 10, 2023 | Aug 15, 2025 |
Severity
6
CVSS
(AV:L/AC:M/Au:M/C:C/I:C/A:C)
Published
Oct 10, 2023
Added
Oct 10, 2023
Modified
Aug 15, 2025
Description
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.
Solution
debian-upgrade-grub2
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