CVE-2024-45777
grub2: grub-core/gettext: Integer overflow leads to Heap OOB Write.
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · February 19, 2025
Updated · October 22, 2026
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.
Statement
The Red Hat Product Security team has rated this vulnerability with a Moderate severity due to the high privileges required to exploit this flaw.
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 · 6.7CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE-787 · Out-of-bounds Write