Buffer overflow in Red Hat Enterprise Linux 10

CVE-2024-45776

When reading the language .mo file in grub_mofile_open(), grub2 fails to verify an integer overflow when allocating its internal buffer. A crafted .mo file may lead the buffer size calculation to overflow, leading to out-of-bound reads and writes. This flaw allows an attacker to leak sensitive data or overwrite critical data, possibly circumventing secure boot protections.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (15.6th percentile) — read the EPSS interpretation.