In FreeRADIUS 3.0.x before 3.0.20, the EAP-pwd module used a global OpenSSL BN_CTX instance to handle all handshakes. This mean multiple threads use the same BN_CTX instance concurrently, resulting in crashes when concurrent EAP-pwd handshakes are initiated. This can be abused by an adversary as a Denial-of-Service (DoS) attack.
CPE | Name | Operator | Version |
---|---|---|---|
freeradius | ge | 3.0.0 | |
freeradius | lt | 3.0.20 | |
leap | eq | 15.1 |