freeradius -- authentication bypass vulnerability

The freeradius development team reports:

A validation issue exists with the EAP-MSCHAPv2 module
in all versions from 1.0.0 (where the module first
appeared) to 1.1.0. Insufficient input validation was being
done in the EAP-MSCHAPv2 state machine. A malicious
attacker could manipulate their EAP-MSCHAPv2 client state
machine to potentially convince the server to bypass
authentication checks. This bypassing could also result
in the server crashing