Well, I did get Word to run on wine once, though it had a number of 
problems which ment it was not 100% useful, but thats for the future, 
CrossOver is now. I didn't mean to imply that this would give Word 
access to the kernel, I was only asking the question, is all my user 
stuff is now at risk? Obviously the scope of corruption would be limited 
to my /home and maybe some /tmp stuff, but this is enough to bring my 
session down and make it unusable. Worse, a macro virus could infect my 
other Word docs in a uncontrolled way (no virus protection) and all my 
collegues will start to hate me for sending them on. I don't even have a 
way to disinfect myself after the fact.

civileme wrote:

> Nick Thompson wrote:
>
>> So lets say that I get M$ Word running under wine, or I spash out on 
>> CodeWeavers Crossover Office. If Word is running correctly, I assume 
>> my pristine MDK installation has suddenly become vunerable to Word 
>> Macro viruses. The Linux kernel doesn't have windows anti-virus 
>> protection to save me from this, so is there anything I can do to 
>> protect myself? I could backup each time I want to run it I suppose 
>> ;-)  Or maybe I've got it all wrong... Any ideas?
>
> VERY wrong... 
> First of all, you won't get word to run on WINE because WINE handles 
> only standard APIs, not the secret ones that Microsoft uses, which 
> gives word and its macro facility DIRECT access to the Windows kernel.
>
> Crossover only emulates the access, certainly gives no access to the 
> linux-kernel because it has only the privileges of the user running 
> it...  And unless you are running as root, you CAN'T WRITE TO /bin 
> /usr/bin or anything else sitting in your executable path except 
> perhaps your home directory.  You might get a virus but
> it couldn't propagate.
>
> EVEN IF you were able to run as root (and deal with the poison red 
> screen), and you were running Word, and you had a macro virus, it 
> couldn't do very much because it isn't the windows kernel.  The most 
> likely result would be a segfault/kernel oops or a message about 
> privilege violation.
>
> True, the linux kernel has no anti-virus features.  They aren't 
> needed. viruses are theoretically possible, and a few have been 
> written, but they can't propagate, so they remain academic 
> curiosities.  Worms are theoretically possible, and a few have been 
> written and they have played nasty games with systems that didn't stay 
> updated (Yes, you can update easily without rebooting), but usually 
> those exploits come out about 6 months after the fix is available.




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