CVE Vulnerability

CVE-2019-13628

wolfSSL and wolfCrypt 4.0.0 and earlier (when configured without --enable-fpecc, --enable-sp, or --enable-sp-math) contain a timing side channel in ECDSA signature generation. This allows a local attacker, able to precisely measure the duration of signature operations, to infer information about the nonces used and potentially mount a lattice attack to recover the private key used. The issue occurs because ecc.c scalar multiplication might leak the bit length.

1.2 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 1.9 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

4.7 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://tches.iacr.org/index.php/TCHES/article/view/7337 Technical Description Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/10/02/2 Mailing List Third Party Advisory
https://minerva.crocs.fi.muni.cz/ Product
https://eprint.iacr.org/2011/232.pdf Technical Description Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*
Information

Published : 2019-10-03 02:15

Updated : 2019-10-10 02:26

NVD link : CVE-2019-13628

Mitre link : CVE-2019-13628

Products Affected
No products.
CWE
CWE-203