CVEvulnerability

CVE-2021-3336

8.1 HIGH Published 2021-01-29 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-01-29
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.1 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
CWE-295

Description

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.

Affected configurations

• wolfssl wolfssl (< 4.7.0)

Related

Weakness · CWE (1)

  • CWE-295 Improper Certificate Validation weakness

References