CVE Vulnerability

CVE-2019-19963

An issue was discovered in wolfSSL before 4.3.0 in a non-default configuration where DSA is enabled. DSA signing uses the BEEA algorithm during modular inversion of the nonce, leading to a side-channel attack against the nonce.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

5.3 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/wolfSSL/wolfssl/releases/tag/v4.3.0-stable Release Notes Third Party Advisory
https://github.com/wolfSSL/wolfssl/commit/7e391f0fd57f2ef375b1174d752a56ce34b2b190 Patch Third Party Advisory
Configurations

Configuration 1

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

Published : 2019-12-25 12:15

Updated : 2020-01-02 07:48

NVD link : CVE-2019-19963

Mitre link : CVE-2019-19963

Products Affected
No products.
CWE
NVD-CWE-Other