lanma256.bmp/lanmannt.bmp security risk?

[Mike.Blomgren () LS SE (Mike Blomgren)]

Having followed the thread on rtf exploits, I wonderd if there might be any other service which could be vulnerable 
under NT.

One thing that struck me, is the .bmp that is displayed when Windows NT 4 boots (the one which says "Windows NT 
Workstation/Server" and is displayed under the logon box). What would happen if it is malformed, and NT is unable to 
display it? Buffer overflow - with arbitrary code execution? BSOD?

My knowledge of exploits stretches no further than this. However, I can just imagine the implications, should it be a 
security risk. I haven't seen any posts or found any other information regarding this - so maybe it's a non-issue. Or 
maybe not...

~Mike