Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2024-45678

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
03/09/2024
Last modified:
17/03/2025

Description

Yubico YubiKey 5 Series devices with firmware before 5.7.0 and YubiHSM 2 devices with firmware before 2.4.0 allow an ECDSA secret-key extraction attack (that requires physical access and expensive equipment) in which an electromagnetic side channel is present because of a non-constant-time modular inversion for the Extended Euclidean Algorithm, aka the EUCLEAK issue. Other uses of an Infineon cryptographic library may also be affected.

Impact

Vector 3.x
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 4.20 MEDIUM
Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Physical
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x
4.20
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:yubico:yubikey_5c_nfc_firmware:*:*:*:*:*:*:*:* 5.7 (excluding)
cpe:2.3:h:yubico:yubikey_5c_nfc:-:*:*:*:*:*:*:*
cpe:2.3:o:yubico:yubikey_5_nfc_firmware:*:*:*:*:*:*:*:* 5.7 (excluding)
cpe:2.3:h:yubico:yubikey_5_nfc:-:*:*:*:*:*:*:*
cpe:2.3:o:yubico:yubikey_5c_firmware:*:*:*:*:*:*:*:* 5.7 (excluding)
cpe:2.3:h:yubico:yubikey_5c:-:*:*:*:*:*:*:*
cpe:2.3:o:yubico:yubikey_5_nano_firmware:*:*:*:*:*:*:*:* 5.7 (excluding)
cpe:2.3:h:yubico:yubikey_5_nano:-:*:*:*:*:*:*:*
cpe:2.3:o:yubico:yubikey_5c_nano_firmware:*:*:*:*:*:*:*:* 5.7 (excluding)
cpe:2.3:h:yubico:yubikey_5c_nano:-:*:*:*:*:*:*:*
cpe:2.3:o:yubico:yubikey_5ci_firmware:*:*:*:*:*:*:*:* 5.7 (excluding)
cpe:2.3:h:yubico:yubikey_5ci:-:*:*:*:*:*:*:*
cpe:2.3:o:yubico:yubikey_5_nfc_fips_firmware:*:*:*:*:*:*:*:* 5.7 (excluding)
cpe:2.3:h:yubico:yubikey_5_nfc_fips:-:*:*:*:*:*:*:*
cpe:2.3:o:yubico:yubikey_5c_nfc_fips_firmware:*:*:*:*:*:*:*:* 5.7 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools