CVE-2021-34433: High severity eclipse californium vulnerability
In Eclipse Californium version 2.0.0 to 2.6.4 and 3.0.0-M1 to 3.0.0-M3, the certificate based (x509 and RPK) DTLS handshakes accidentally succeeds without verifying the server side's signature on the client side, if that signature is not included in the server's ServerKeyExchange.
Affected Software
Event History
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2021-34433.
What is the severity level of CVE-2021-34433?
The severity level of CVE-2021-34433 is high (7.5).
What software versions are affected by CVE-2021-34433?
Eclipse Californium version 2.0.0 to 2.6.4 and 3.0.0-M1 to 3.0.0-M3 are affected by CVE-2021-34433.
How does CVE-2021-34433 exploit the vulnerability?
CVE-2021-34433 allows certificate-based DTLS handshakes to succeed without verifying the server side's signature on the client side, if that signature is not included in the server's ServerKeyExchange.
Are there any references or additional information about CVE-2021-34433?
Yes, you can find more information about CVE-2021-34433 at the following link: https://bugs.eclipse.org/bugs/show_bug.cgi?id=575281