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CVE-2024-37880

nvd nist
Published: Jun 10, 2024Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

The Kyber reference implementation before 9b8d306, when compiled by LLVM Clang through 18.x with some common optimization options, has a timing side channel that allows attackers to recover an ML-KEM 512 secret key in minutes. This occurs because poly_frommsg in poly.c does not prevent Clang from emitting a vulnerable secret-dependent branch.

Affected (1)

Products: Pq Crystals: Kyber
Pq Crystals
1 product
Kyber
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Kyber
Before 2024-06-03

Related CWEs

CWE-203
Observable Discrepancy
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

References (10)

Source: cve@mitre.org
Exploit
Source: cve@mitre.org
Patch
Source: cve@mitre.org
Not Applicable
Source: cve@mitre.org
ExploitThird Party Advisory
Source: cve@mitre.org
Exploit
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
Source: af854a3a-2127-422b-91ae-364da2661108
Not Applicable
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit

Timeline

No history available yet.