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VULNERABILITIES

CVE-2021-3336 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/wolfSSL/wolfssl/pull/3676 CVEPatchThird Party Advisory
https://www.wolfssl.com/docs/security-vulnerabilities CVEVendor Advisory
https://github.com/wolfSSL/wolfssl/pull/3676 [email protected]PatchThird Party Advisory
https://www.wolfssl.com/docs/security-vulnerabilities [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-295Improper Certificate Validation[email protected]

Affected Products

ProductVersions
wolfssl wolfssl
< 4.7.0

CPE

  • cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

7 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-3336
NVD Published Date:
Jan 29, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-3336 Details - Not Deferred