Out-of-bounds write in grub - CVE-2025-0684
Published: February 19, 2025
Vulnerability identifier: #VU104083
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-0684
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: GNU
Affected software:
grub
grub
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error when performing a symlink lookup from a reiserfs filesystem. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
How to mitigate CVE-2025-0684
Install updates from vendor's website.