Cryptographic issues in wolfSSL - CVE-2023-6937
Published: December 28, 2023
Vulnerability identifier: #VU84841
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-6937
CWE-ID: CWE-310
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: wolfSSL
Affected software:
wolfSSL
wolfSSL
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to wolfSSL does not check that messages in a single (D)TLS record do not span key boundaries. As a result, it is possible to combine (D)TLS messages using different keys into one (D)TLS record and force the client to accept an unencrypted flight from the server.
How to mitigate CVE-2023-6937
Install updates from vendor's website.