CVE-2024-57256
6.8
MEDIUM
CVSS 3.1
EPSS 0.06%
Description
An integer overflow in ext4fs_read_symlink in Das U-Boot before 2025.01-rc1 occurs for zalloc (adding one to an le32 variable) via a crafted ext4 filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite.
How to fix CVE-2024-57256
To remediate CVE-2024-57256, upgrade the affected package to a fixed version below.
- Debian/u-boot—upgrade to 2021.01+dfsg-5+deb11u1 or later
Is CVE-2024-57256 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2021.01+dfsg-5+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.8 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |