CVE-2024-56738

MEDIUM EPSS 29.8%
Published Dec 29, 20241y ago · Modified Jun 17, 20261w ago
5.3 CVSS 3.1
Medium
Find Similar
Published Dec 29, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

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

CVSS Details

Base Score
5.3
Exploitability
3.9
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
29.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-203
CWE-208

Affected Products 1

VendorProductVersionRange
gnugrub2* ≤2.12

References 1

  • savannah.gnu.org https://savannah.gnu.org/bugs/?66603
    Issue TrackingThird Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.