Out-of-bounds write in grub - CVE-2024-45782

 

Out-of-bounds write in grub - CVE-2024-45782

Published: February 19, 2025


Vulnerability identifier: #VU104077
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/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-2024-45782
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: GNU
Affected software:
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 reading a volume's name within the grub_fs_mount() function in HFS filesystem driver. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.


How to mitigate CVE-2024-45782

Install updates from vendor's website.

Sources