CVE-2024-45781
6.7
MEDIUM
CVSS 3.1
EPSS 0.24%
Description
A flaw was found in grub2. When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing data integrity issues and eventually allowing an attacker to circumvent secure boot protections.
How to fix CVE-2024-45781
To remediate CVE-2024-45781, upgrade the affected package to a fixed version below.
- Debian/grub2—upgrade to 2.06-3~deb11u7 or later
Is CVE-2024-45781 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.06-3~deb11u7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.7 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |