Security vulnerability in BufferZone 2.5

vulnerable software: BufferZone (all product version) till version 2.5 (latest)
type of vulnerability: DoS, potential privilege escalation

I found a vulnerability in BufferZone which allows an unprivileged user and 
even a malicious software running inside the BufferZone sandbox to crash the 
system and potentially run arbitrary code with kernel privileges.
The issue is within the kernel driver redlight.sys which does not properly 
validate file buffer. Sending the IOCTL code FsSetVolumeInformation with 
subcode FsSetDirectoryInformation with a large buffer but underreporting its 
size with at most 1024 bytes results in a buffer underrun which might also lead 
to executing arbitrary code.
Since the RedLight device is also visible to sandboxed application, it might 
allow a sandboxed malware to escape the sandbox.

How to reproduce:
- get DC2.exe from the latest Windows Driver Kit
- install BufferZone
- login with an unprivileged user
- start a cmd.exe shell within the sandbox
- run "dc2 /hct \Device\RedLight"

I have originally reported this vulnerability for BufferZone 2.1 on 13-Jun-07, 
but aside from an some auto-response mails never received any reply. The 
vulnerability is still present in the most recent version 2.5.