CVE-2021-3336

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

8.1 /10

CVSS v3 : 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

6.8 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

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 (hide)

cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*
History

04 Mar 2021, 21:20

Type Values Removed Values Added
CVSS v2 : 7.5
v3 : 9.8 		v2 : 6.8
v3 : 8.1
References (CONFIRM) https://www.wolfssl.com/docs/security-vulnerabilities - (CONFIRM) https://www.wolfssl.com/docs/security-vulnerabilities - Vendor Advisory

23 Feb 2021, 00:15

Type Values Removed Values Added
References
  • (CONFIRM) https://www.wolfssl.com/docs/security-vulnerabilities -
Summary DoTls13CertificateVerify in tls13.c in wolfSSL through 4.6.0 does not cease processing for certain anomalous peer behavior (sending an ED22519, ED448, ECC, or RSA signature without the corresponding certificate). 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.

02 Feb 2021, 17:43

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : 7.5
v3 : 9.8
CWE CWE-295
References (MISC) https://github.com/wolfSSL/wolfssl/pull/3676 - (MISC) https://github.com/wolfSSL/wolfssl/pull/3676 - Patch, Third Party Advisory
CPE cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*

29 Jan 2021, 05:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-01-29 05:15

Updated : 2023-12-10 13:41

NVD link : CVE-2021-3336

Mitre link : CVE-2021-3336

CVE.ORG link : CVE-2021-3336

JSON object : View

Products Affected

wolfssl

  • wolfssl
CWE
CWE-295

Improper Certificate Validation