Vulnerability · Published Dec 29, 2024 · Assigned by mitre
CVE-2024-56737
High 8.8
In plain English
A high-severity heap buffer overflow in GRUB2 from GNU. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.7%top 45.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | grub2 | no fix listed | DEBIAN-CVE-2024-56737 |
| Debian:13 | grub2 | 2.12-6 | DEBIAN-CVE-2024-56737 |
| Debian:14 | grub2 | 2.12-6 | DEBIAN-CVE-2024-56737 |
| Ubuntu:22.04:LTS | grub2-signed | no fix listed | UBUNTU-CVE-2024-56737 |
| Ubuntu:24.04:LTS | grub2-signed | no fix listed | UBUNTU-CVE-2024-56737 |
| Ubuntu:25.10 | grub2-signed | no fix listed | UBUNTU-CVE-2024-56737 |
| Ubuntu:26.04:LTS | grub2-signed | no fix listed | UBUNTU-CVE-2024-56737 |
| Ubuntu:26.10 | grub2-signed | no fix listed | UBUNTU-CVE-2024-56737 |
| Ubuntu:22.04:LTS | grub2-unsigned | no fix listed | UBUNTU-CVE-2024-56737 |
| Ubuntu:24.04:LTS | grub2-unsigned | no fix listed | UBUNTU-CVE-2024-56737 |
| Ubuntu:25.10 | grub2-unsigned | no fix listed | UBUNTU-CVE-2024-56737 |
| Ubuntu:26.04:LTS | grub2-unsigned | no fix listed | UBUNTU-CVE-2024-56737 |
| Ubuntu:26.10 | grub2-unsigned | no fix listed | UBUNTU-CVE-2024-56737 |
Affected products (as reported)
Weakness: CWE-122 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H