VULNERABILITY

Debian: CVE-2023-4692: grub2 -- security update

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Debian: CVE-2023-4692: grub2 -- security update

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
10/10/2023
Created
10/11/2023
Added
10/10/2023
Modified
01/30/2025

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(s)

  • debian-upgrade-grub2

References

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