Subject: Re: Pentium Bug may cause system crash
To: Michael K. Sanders <>
From: Rick Byers <>
List: current-users
Date: 11/12/1997 16:11:46
That "fix" appears to be only for Pentium PRO's and Pentium IIs, which
(AFAIK) don't have the "pentium bug".  AFAIK, only PRO's and IIs can have
their microcode upgraded via software.


On Wed, 12 Nov 1997, Michael K. Sanders wrote:

> It's a microcode upgrade.  SCO has a fix now, as well.
> In message <>, Michael Graff writes:
> >Andrew Gillham <> writes:
> >
> >> If their patch just looks through the code for '0xf0, 0x0f, 0xc7, 0xc8' 
> >> when exec()'ing, then what stops the malicious from reassembling the
> >> sequence at runtime?
> >
> >I really don't see how a software workaround is plausable for this sort
> >of bug.

Rick Byers                                      Internet Access Worldwide                                		     System Admin
University of Waterloo, Computer Science                    (905)714-1400