CVE-2012-4741
The RADIUS extension in PacketFence before 3.3.0 uses a different user name than is used for authentication for users with custom VLAN assignment extensions, which allows remote attackers to spoof user identities via the User-Name RADIUS attribute.
Date published : 2012-08-31
http://www.packetfence.org/bugs/view.php?id=1390
http://sourceforge.net/mailarchive/message.php?msg_id=29126135