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CVE-2024-56738

Date: December 28, 2024

GNU GRUB (aka GRUB2) through 2.12 does not use a constant-time algorithm for grub_crypto_memcmp and thus allows side-channel attacks.

Severity Score

Related Resources (3)

https://savannah.gnu.org/bugs/?66603
https://nvd.nist.gov/vuln/detail/CVE-2024-56738
https://www.mend.io/vulnerability-database/CVE-2024-56738

Severity Score

Weakness Type (CWE)

Observable Discrepancy

CWE-203

Observable Timing Discrepancy

CWE-208

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

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