6.7 Medium

CVE-2024-45777 Grub2: grub-core/gettext: integer overflow leads to heap oob write.

Description

A flaw was found in grub2. The calculation of the translation buffer when reading a language .mo file in grub_gettext_getstr_from_position() may overflow, leading to a Out-of-bound write. This issue can be leveraged by an attacker to overwrite grub2's sensitive heap data, eventually leading to the circumvention of secure boot protections.

CVSS 3.1 detail

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

Exploitable with local access to the machine, with an administrator account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector: Local
Attack complexity: Low
Privileges required: High
Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Affected products and versions

Product	Affected versions	Fixed in
Red Hat Enterprise Linux 9	Versions not published
Red Hat Enterprise Linux 10	Versions not published
Red Hat Enterprise Linux 7	Versions not published
Red Hat Enterprise Linux 8	Versions not published
Red Hat OpenShift Container Platform 4	Versions not published
Red Hat In-Vehicle Operating System 1	Versions not published

References

RHSA-2025:20532 access.redhat.com
access.redhat.com access.redhat.com
RHBZ#2346343 bugzilla.redhat.com

Timeline

Published February 19, 2025
Last modified November 5, 2026

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