Integer overflow in Universal Boot Loader (U-Boot) - CVE-2024-57256
Published: March 4, 2025
Vulnerability identifier: #VU105267
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-57256
CWE-ID: CWE-190
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: DENX
Affected software:
Universal Boot Loader (U-Boot)
Universal Boot Loader (U-Boot)
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to integer overflow within the ext4fs_read_symlink() function. A local user can use a specially crafted ext4 filesystem to trigger an integer overflow and execute arbitrary code with elevated privileges.
How to mitigate CVE-2024-57256
Install updates from vendor's website.