CVE-2024-2312

grub2: grub-efi crashes upon `exit`

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Severity

Moderate

Red Hat Product Security

6.7

CVSS 3.1

Review impact separately from score.

Published · April 5, 2024

Updated · November 21, 2025

Description

A flaw was found in GRUB2. GRUB2 do not call the module fini functions on exit, leading to Debian/Ubuntu's peimage GRUB2 module leaving the UEFI system table hooks after exit. This issue leads to a use-after-free condition, possibly leading to a secure boot bypass.

Statement

This flaw is specific to Debian/Ubuntu and derived distributions. GRUB2 as shipped in Red Hat Enterprise Linux does not include the peimage module. Therefore, Red Hat Products are not affected by this issue.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 6.7
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CWE-416 · Use After Free