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CVE-2025-0624
Date: February 19, 2025
A flaw was found in grub2. During the network boot process when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using grub_strcpy() function. During this step it fails to consider the environment variable length when allocating the internal buffer, resulting in a out-of-bounds write. If correctly exploited this issue may result in remote code execution through the same network segment the grub is searching for the boot information, which can be used to by-pass secure boot protections.
Severity Score
Related Resources (23)
Severity Score
Weakness Type (CWE)
Out-of-bounds Write
CWE-787CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | ADJACENT_NETWORK |
| Attack Complexity (AC): | HIGH |
| Privileges Required (PR): | HIGH |
| User Interaction (UI): | NONE |
| Scope (S): | CHANGED |
| Confidentiality (C): | HIGH |
| Integrity (I): | HIGH |
| Availability (A): | HIGH |