CVE-2024-56737highCWE-122

CVE-2024-56737: high-severity vulnerability in GNU GRUB2

Published · Updated

Follow this CVE+ Monitor grub2+ Monitor grub2

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.8epss 0.7%
In short

GNU GRUB version 2.12 and earlier has a memory overflow vulnerability in its HFS filesystem handler. An attacker can crash or potentially take control of the boot process by creating a malicious HFS disk with specially crafted data.

Technical detail

Heap-based buffer overflow in fs/hfs.c triggered during parsing of superblock data in HFS filesystems. Attack vector requires local access to craft malicious HFS media; impact includes denial of service and potential code execution at boot-time privilege level.

Summary generated and translated by AI from the official description.
GNU GRUB (aka GRUB2) through 2.12 has a heap-based buffer overflow in fs/hfs.c via crafted sblock data in an HFS filesystem.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
GNU · GRUB2
Related CVEs — GNU GRUB2

In the same product, most dangerous first.

CVE-2024-56738MEDIUMCVE-2024-56738EPSS 0.4%