Certificate Validation Vulnerability in wolfSSL TLS 1.3 Client Authentication
CVE-2022-25638

6.5MEDIUM

Key Information:

Vendor

Wolfssl

Status
Wolfssl
Vendor
CVE Published:
24 February 2022

What is CVE-2022-25638?

A certificate validation bypass vulnerability exists in wolfSSL versions prior to 5.2.0, allowing a TLS 1.3 client to potentially evade authentication checks when connecting to a TLS 1.3 server. This issue arises when there is a discrepancy in the sig_algo field between the certificate_verify message and the certificate message, posing a security risk to systems utilizing affected wolfSSL versions.

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References

https://github.com/wolfSSL/wolfssl/pull/4813
x_refsource_MISC
https://www.wolfssl.com/docs/security-vulnerabilities/
x_refsource_CONFIRM

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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