AMD CPU L1-data cache vulnerable to sidechannel attacks

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09-03-2020, 11:11 AM
HEXUS

AMD CPU L1-data cache vulnerable to sidechannel attacks

Quote:

Graz research team detail the 'Take A Way' Collide + Probe and Load + Reload exploits.

Read more.
09-03-2020, 11:22 AM
philehidiot

Re: AMD CPU L1-data cache vulnerable to sidechannel attacks

Interesting how only one of the Zen2 processors were tested. I wouldn't call that a comprehensive list for research. Also interesting is how yet another Intel vulnerability with the management engine (hard to exploit but will likely render DRM useless on entire generations when it is inevitably exploited) and then this comes out but seems very well publicised.

How very interesting.
09-03-2020, 12:17 PM
DanceswithUnix

Re: AMD CPU L1-data cache vulnerable to sidechannel attacks

Quote:

Originally Posted by philehidiot

Also interesting is how yet another Intel vulnerability with the management engine...

To be fair, that isn't exactly news worthy :D
09-03-2020, 01:00 PM
Tabbykatze

Re: AMD CPU L1-data cache vulnerable to sidechannel attacks

AMD has responded to this, mind including this?

https://www.amd.com/en/corporate/product-security
09-03-2020, 01:10 PM
mtyson

Re: AMD CPU L1-data cache vulnerable to sidechannel attacks

Quote:

Originally Posted by Tabbykatze

AMD has responded to this, mind including this?

https://www.amd.com/en/corporate/product-security

Hi, that link is already present in para 2 and mentioned a couple of times. Regards
09-03-2020, 01:19 PM
Tabbykatze

Re: AMD CPU L1-data cache vulnerable to sidechannel attacks

Quote:

Originally Posted by mtyson

Quote:

Originally Posted by Tabbykatze

AMD has responded to this, mind including this?

https://www.amd.com/en/corporate/product-security

Hi, that link is already present in para 2 and mentioned a couple of times. Regards

Is it possible to have the actual quote? A lot of media are blowing this out of proportion considering it relies on a previously mitigated exploit to be vulnerable to commit the attack.
09-03-2020, 01:41 PM
philehidiot

Re: AMD CPU L1-data cache vulnerable to sidechannel attacks

Quote:

Originally Posted by DanceswithUnix

To be fair, that isn't exactly news worthy :D

Get back under your bridge! ;)
09-03-2020, 02:06 PM
LSG501

Re: AMD CPU L1-data cache vulnerable to sidechannel attacks

Quote:

Originally Posted by philehidiot

Interesting how only one of the Zen2 processors were tested. I wouldn't call that a comprehensive list for research. Also interesting is how yet another Intel vulnerability with the management engine (hard to exploit but will likely render DRM useless on entire generations when it is inevitably exploited) and then this comes out but seems very well publicised.

How very interesting.

Intel 'sponsored' and from what I've read elsewhere, biased testing by not using fully update setups....

Then it's likely getting 'pushed' to the front of every inbox because it's AMD even though in the grand scheme of things it's pretty minor compared with the holes that keep turning up in intel hardware...
09-03-2020, 05:10 PM
ik9000

Re: AMD CPU L1-data cache vulnerable to sidechannel attacks

Wow. The spectre of this almost makes me meltdown over my decision to buy AMD over Intel. I should have listened to that load of zombies and bought Intel even though its current chips are overpriced and comparatively underperforming, not to mention security flawed. Oh boy. Quick I'd better cancel my order stick with my AMD chip as planned.
09-03-2020, 06:08 PM
QuorTek

Re: AMD CPU L1-data cache vulnerable to sidechannel attacks

Not going to buy Intel next time, not untill they fix their stuff and the drop down their prices.
10-03-2020, 12:11 PM
philehidiot

Re: AMD CPU L1-data cache vulnerable to sidechannel attacks

Quote:

Originally Posted by ik9000

Wow. The spectre of this almost makes me meltdown over my decision to buy AMD over Intel. I should have listened to that load of zombies and bought Intel even though its current chips are overpriced and comparatively underperforming, not to mention security flawed. Oh boy. Quick I'd better cancel my order stick with my AMD chip as planned.

Stop that. Stop that right now. Bad Dad jokes should be illegal.

I've just bought an AMD Zen2 chip and the more of this stuff that happens, the happier I am to be rid of Intel and that I haven't handed them any money this time around.
10-03-2020, 02:51 PM
DanceswithUnix

Re: AMD CPU L1-data cache vulnerable to sidechannel attacks

Quote:

Originally Posted by philehidiot

Stop that. Stop that right now. Bad Dad jokes should be illegal.

Are there good Dad Jokes? Don't tell my daughter ;)
10-03-2020, 03:22 PM
ik9000

Re: AMD CPU L1-data cache vulnerable to sidechannel attacks

Quote:

Originally Posted by DanceswithUnix

Are there good Dad Jokes? Don't tell my daughter ;)

Quote:

Originally Posted by philehidiot

Stop that. Stop that right now. Bad Dad jokes should be illegal.

I've just bought an AMD Zen2 chip and the more of this stuff that happens, the happier I am to be rid of Intel and that I haven't handed them any money this time around.

but... but... but I'm not a dad!?! Oh no. It's got me before my time. Farewell youth!

I've almost got my 3900x system finished. Not regretting it.
11-03-2020, 03:32 PM
six_tymes

Re: AMD CPU L1-data cache vulnerable to sidechannel attacks

if companies did as much research with Amd's procs as they do with Intel's I would not be surprised to find Amd has just as many vulnerabilities as Intel's, if not more.
11-03-2020, 03:40 PM
DanceswithUnix

Re: AMD CPU L1-data cache vulnerable to sidechannel attacks

Quote:

Originally Posted by six_tymes

if companies did as much research with Amd's procs as they do with Intel's I would not be surprised to find Amd has just as many vulnerabilities as Intel's, if not more.

Why?

Security is largely about company culture, and the two companies are not alike.