CVE-2024-45777 Information

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 Vector

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

Reference

https://access.redhat.com/security/cve/CVE-2024-45777 https://bugzilla.redhat.com/show_bug.cgi?id=2346343

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

6.7