+++ This bug was initially created as a clone of Bug #236247 +++

A flaw was found in the way FreeRADIUS parses certain authentication requests.
The upstream description explain it as such:
http://www.freeradius.org/security.html

    2007.04.10 v1.1.5, and earlier - A malicous 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.

    We recommend that administrators using EAP-TTLS upgrade immediately.
    This bug was found as part of the Coverity Scan project.

The EAP-TTLS support is not enabled by default in any FreeRADIUS
installations.


This flaw also affects FC5

-- Additional comment from bressers@redhat.com on 2007-04-12 13:31 EST --
Created an attachment (id=152488)
Upstream Patch