Vulnerability · Published Mar 3, 2025 · Assigned by redhat
CVE-2024-45778Grub2: fs/bfs: integer overflow in the bfs parser.
Medium 4.1
In plain English
A medium-severity integer overflow in grub2. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.1Medium
Exploit odds (30 days)0.3%top 77.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A stack overflow flaw was found when reading a BFS file system. A crafted BFS filesystem may lead to an uncontrolled loop, causing grub2 to crash.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | grub2 | 2.06-13+deb12u2 | DEBIAN-CVE-2024-45778 |
| Debian:13 | grub2 | 2.12-6 | DEBIAN-CVE-2024-45778 |
| Debian:14 | grub2 | 2.12-6 | DEBIAN-CVE-2024-45778 |
| Ubuntu:22.04:LTS | grub2-signed | no fix listed | UBUNTU-CVE-2024-45778 |
| Ubuntu:24.04:LTS | grub2-signed | no fix listed | UBUNTU-CVE-2024-45778 |
| Ubuntu:25.10 | grub2-signed | no fix listed | UBUNTU-CVE-2024-45778 |
| Ubuntu:26.04:LTS | grub2-signed | no fix listed | UBUNTU-CVE-2024-45778 |
| Ubuntu:26.10 | grub2-signed | no fix listed | UBUNTU-CVE-2024-45778 |
| Ubuntu:22.04:LTS | grub2-unsigned | no fix listed | UBUNTU-CVE-2024-45778 |
| Ubuntu:24.04:LTS | grub2-unsigned | no fix listed | UBUNTU-CVE-2024-45778 |
| Ubuntu:25.10 | grub2-unsigned | no fix listed | UBUNTU-CVE-2024-45778 |
| Ubuntu:26.04:LTS | grub2-unsigned | no fix listed | UBUNTU-CVE-2024-45778 |
| Ubuntu:26.10 | grub2-unsigned | no fix listed | UBUNTU-CVE-2024-45778 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| grub2 | 0 – through 2.12 | |
| Red Hat | Red Hat Enterprise Linux 10 | see references |
| Red Hat | Red Hat Enterprise Linux 7 | see references |
| Red Hat | Red Hat Enterprise Linux 8 | see references |
| Red Hat | Red Hat Enterprise Linux 9 | see references |
| Red Hat | Red Hat OpenShift Container Platform 4 | see references |
Weakness: CWE-190 · Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
References
- https://access.redhat.com/security/cve/CVE-2024-45778 vdb-entry, x_refsource_REDHAT
- RHBZ#2345640 issue-tracking, x_refsource_REDHAT
- https://lists.gnu.org/archive/html/grub-devel/2025-02/msg00024.html