Bugtraq mailing list archives

Re: Intel Pentium Bug

From: joelkatz () WEBMASTER COM (JoelKatz)
Date: Fri, 7 Nov 1997 23:05:28 -0500

So, only the operating system or a Master Boot Record virus, will be able

to

install the new microcode.



    Not even. As I understand it, the microcode must be updated by the BIOS.
By the time the boot sector is loaded, the chip has already disabled the
microcode update capability. Rumor is that microcode updates must also be
'signed', but I find it hard to believe that Intel could implement a true
digital signature algorithm entirely in microcode.

    DS

Current thread:

Re: Intel Pentium Bug Daniele Orlandi (Nov 07)
- Re: Intel Pentium Bug Aleph One (Nov 07)
  - Re: Intel Pentium Bug Ian McWilliam (Nov 08)
- <Possible follow-ups>
- Re: Intel Pentium Bug John Pettitt (Nov 07)
  - Sidenote of Pentium Bugs Dave (Nov 07)
  - Security bug in iCat Suite version 3.0 Mikael Johansson (Nov 08)
- Re: Intel Pentium Bug JoelKatz (Nov 07)
- Re: Intel Pentium Bug Joe Ilacqua (Nov 07)
- Re: Intel Pentium Bug Rubens Kuhl Jr. (Nov 07)
  - Re: Intel Pentium Bug Ralf Baechle (Nov 10)
- Re: Intel Pentium Bug Barry Irwin (Nov 08)
- Re: Intel Pentium Bug Bjorn Wesen (Nov 08)
- Re: Intel Pentium Bug Peter Bierman (Nov 08)
- Re: Intel Pentium Bug Aleph One (Nov 08)
  - Microsoft Office security bug Aleph One (Nov 07)
    - Re: Microsoft Office security bug Inigo Gonzalez (Nov 11)
    - What were the opcodes to hang a Pentium again? (fwd) Darren Reed (Nov 11)

(Thread continues...)