CVE-2022-38152: High severity wolfssl wolfmqtt vulnerability
An issue was discovered in wolfSSL before 5.5.0. When a TLS 1.3 client connects to a wolfSSL server and SSLclear is called on its session, the server crashes with a segmentation fault. This occurs in the second session, which is created through TLS session resumption and reuses the initial struct WOLFSSL. If the server reuses the previous session structure (struct WOLFSSL) by calling wolfSSLclear(WOLFSSL ssl) on it, the next received Client Hello (that resumes the previous session) crashes the server. Note that this bug is only triggered when resuming sessions using TLS session resumption. Only servers that use wolfSSLclear instead of the recommended SSLfree; SSLnew sequence are affected. Furthermore, wolfSSLclear is part of wolfSSL's compatibility layer and is not enabled by default. It is not part of wolfSSL's native API.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is CVE-2022-38152?
CVE-2022-38152 is a vulnerability discovered in wolfSSL before version 5.5.0 that can cause a server to crash when a TLS 1.3 client connects and SSL_clear is called on its session.
How severe is CVE-2022-38152?
The severity of CVE-2022-38152 is rated as high with a CVSS score of 7.5.
What software is affected by CVE-2022-38152?
The affected software is Wolfssl Wolfssl version up to exclusive 5.5.0.
What is the CWE ID for CVE-2022-38152?
The CWE ID for CVE-2022-38152 is 754.
How can I fix CVE-2022-38152?
To fix CVE-2022-38152, update wolfSSL to version 5.5.0 or later.