P4 Hyperthreading Security Flaw

[MPUK News]

For those system administrators out there, a serious security flaw rising from the shared cache nature of hyper-threading CPUs that could enable users access to threads beyond their security level has come to light.<p>Detailed further in <a href="http://www.bit-tech.net/news/2005/05/14/hyperthreading_security_flaw/">this report</a> from <a href="http://www.bit-tech.net/">Bit-Tech.net</a> (check out their new layout whilst you're there guys.)

Posted by: Cabe

[WroawMinidisk]

http://bakkap.free.fr/CPU/amd-vs-intel.jpg

[Cabe]

roffle

[TimmyNoShoes]

Originally posted by WroawMinidisk
http://bakkap.free.fr/CPU/amd-vs-intel.jpg


Ahhh and oldie but goldie.

[Optimus]

is it me, or is that P4 blind (it has no eyes)... that raises so many social issues my brain hurts...

(it's 1am and i've been drinking coffee... wheeeee!)

[TimmyNoShoes]

It says "suck it down" as in the p4 isnt facing us. :P

[Optimus]

wait... Intel brand the BOTTOM of their chips now?

or was that just so we know its a P4?

(It's early)

[TimmyNoShoes]

Well no intel dont brand the bottom of their chips, but nor do they come with eyes....

[SprayCan]

Or arms.

[GeeDee]

Is it really a serious security flaw? really?

[Boffykins]

No. It's a load of crap. The study was clearly sponsored by AMD on the sly

[Cheez]

Originally posted by GeeDee
Is it really a serious security flaw? really? As serious as firewire... :) Also, the report is slightly out of date, dual core opterons are also vulnerable to this...

[Cabe]

Its only serious if you happen to have a genious haxor in your midst or someone writes a script to do it for them....