freeradius -- EAP-TTLS Tunnel Memory Leak Remote DOS Vulnerability

The freeradius development team reports:

A malicious 802.1x supplicant could send malformed Diameter format attributes inside of an EAP-TTLS tunnel. The server would reject the authentication request, but would leak one VALUE_PAIR data structure, of approximately 300 bytes. If an attacker performed the attack many times (e.g. thousands or more over a period of minutes to hours), the server could leak megabytes of memory, potentially leading to an "out of memory" condition, and early process exit.

[source]