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CPU Errata Turn Security Vulnerabilities


Editor & Senior Moderator
Staff member
Oct 9, 2007
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Hyderabad, India
Security vulnerabilities have plagued the computing world ever since computing became a significant advance of mankind. As of today, the plethora of security software we use that gobble money, system resources and network bandwidth to keep our computers and networks safe, have done a good job and it's relatively 'peaceful' these days. And just when we thought so, enter Kris Kaspersky, eminent security researcher, comes up with the hypothesis that microcode errors, known errors and flaws in the design of CPUs could be exploited by malicious code to attack and compromise systems irrespective of which operating system (OS) and other software are running. Kaspersky claims that different errata of the CPU could be exploited differently.

Kaspersky plans to validate his claims by a demonstration during the Hack-in-the-box (HITB) event this October, where he will demonstrate different attacks specific to the errata of different processors. He told PC World, “I'm going to show real working code...and make it publicly available. Some bugs just crash the system; some allow a hacker to gain full control on the kernel level. Some just help to attack Vista, disabling security protections.”

For the know, even the most recent "Silverthrone" Atom processors have a list of errata, we all remember the Translation Look-aside Buffer erratum that AMD shipped its initial K10 processors with, which plagued sales of the Quad-core AMD Barcelona and Agena parts, and of how Intel delayed launch of Penryn to fix design flaws. That brings us to the burning question: why on earth would Kaspersky want to release the code to create such malware, and discover this vulnerability in the first place? Oh, it means business for Kapersky, a vendor of security software himself, and other security providers. Interestingly, such security patches come in the form of patches to the BIOS a-là the immediate fix for TLB-affected AMD processors. Fresh headache for BIOS coders of Motherboards, or maybe there's a business to that too? Perhaps 'Best security features' could be the next mantra for motherboard vendors, like 'best energy-saving features' is now.

Source: DailyTech
Last edited by a moderator:
Feb 26, 2007
850 (0.21/day)
LoL, go figure. Now we have to pick our primary hardware based on virus problems. Wonder when he's going to find something for video cards. . .


New Member
Dec 28, 2006
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meh most attacks can be stopped with a good hardware firewall and safe browsing, unless they put a virus on my paid porn sites or into wow im good


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Jul 3, 2007
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Did you know..................

that a virus can copy itself to your DVD burner's buffer:eek: And evade any antivirus and then copy istelf back to the HDD, while overcharging the drive's motor causing CDs to explode and posibly shred any living thing within 10 metres?

The solution?



Sold my stars!
Jul 16, 2007
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LoL, go figure. Now we have to pick our primary hardware based on virus problems. Wonder when he's going to find something for video cards. . .
brute force hacks run over 50x faster on a gpu(tested with an x1950 i think) then a cpu.. making a password that could take months to brute force(hence the weekly, bi or tri weekly password changes that a lot of companies make you do etc), cracked in 2-3 days using an x1950(not sure)... now imagine it on the 800 stream processors on the R770.

i must say though :nutkick:Kaspersky. you guys just introduced a whole new breed of viruses and trojans (unforutnantly, its not the rubber kind), and you fucking released the code? i hope your damn software can block the attacks that you've introduced!

also, this will definently become a factor in hardware choices. wonder when gigabyte starts saying.. "hey guys! quad protection against erotic exploits that the kaspersky idiots introduced."

time to buy a new revision errata-free phenom lol.


New Member
May 21, 2006
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meh most attacks can be stopped with a good hardware firewall and safe browsing, unless they put a virus on my paid porn sites or into wow im good
taking the free tour doesn't count as your "paid porn sites" ;)
Mar 15, 2008
1,092 (0.30/day)
So yeah this kinda answers the question: who makes those damn viruses? We have the leading expert right here...
Feb 18, 2006
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old news, this happened with all the old cpu's then the athlon 64's hit the picture and it became harder to do, I imagine if it starts to become a problem again, intel and amd will just release a product that blocks it. no biggie


The Exiled Airman
Jul 2, 2007
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this guy is just trying to exploit another region to make more money is all, it takes malicious code for these companies to be around, so i wouldnt be surprised if they release malicious code themselves every so often.


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Oct 6, 2004
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i thought the xD bit (or whatever it was) was meant to counter this?


Editor & Senior Moderator
Staff member
Oct 9, 2007
34,496 (9.18/day)
Hyderabad, India
i thought the xD bit (or whatever it was) was meant to counter this?
Processors still have errata which Intel/AMD found insignificant and did not patch. Such flaws are now turning to vulnerabilities. Kaspersky wants to prove that.
Sep 11, 2007
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hey who said free tour, i spend about 60 a month on my porn tyvm
Too much info...

Back on topic:
It's better he releases such info, if this kind of thing is kept in the shadows for too long it actually causes more damage.
A good example of this happening is the firewire design flaw:
Endgadget Article
Technical info
Feb 12, 2007
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so he's going to make virus code/program/whatever, show it off and make it availiable to people who really shoudn't see it?
am i missing something or is he an arsehole?
Feb 18, 2005
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This is hardly new news. The original Pentium suffered from the so-called "f00f" bug way back in 1997, and considering that processors have become so much more complex since then, it's very likely that there are a number of undiscovered, but potentially serious vulnerabilities in todays CPUs.

Unfortunately, drawing attention to these issues is the only way they'll get fixed, so I have to say I think Kaspersky is in the right.