CVE Vulnerability

CVE-2021-3336

DoTls13CertificateVerify in tls13.c in wolfSSL before 4.7.0 does not cease processing for certain anomalous peer behavior (sending an ED22519, ED448, ECC, or RSA signature without the corresponding certificate). The client side is affected because man-in-the-middle attackers can impersonate TLS 1.3 servers.

6.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

8.1 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/wolfSSL/wolfssl/pull/3676 Patch Third Party Advisory
https://www.wolfssl.com/docs/security-vulnerabilities Vendor Advisory
Configurations

Configuration 1

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

Published : 2021-01-29 05:15

Updated : 2021-03-04 09:20

NVD link : CVE-2021-3336

Mitre link : CVE-2021-3336

Products Affected
No products.
CWE
CWE-295

Improper Certificate Validation