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AMD Security Announcement on Fallout, RIDL and ZombieLoad Attack
AMD today responded to yesterday's news about the new serious Intel processor vulnerabilities. In this announcement, they confirmed that their processors are not susceptible to this kind of vulnerability.
Yesterday, researchers announced three new security exploits – Fallout, Rogue In-Flight Data Load (RIDL) and “ZombieLoad Attack”. Based on our internal assessment, we believe AMD products are not impacted by these new threats.
Below is our public statement, which you’ll also find available here.
At AMD we develop our products and services with security in mind. Based on our analysis and discussions with the researchers, we believe our products are not susceptible to ‘Fallout’, ‘RIDL’ or ‘ZombieLoad Attack’ because of the hardware protection checks in our architecture. We have not been able to demonstrate these exploits on AMD products and are unaware of others having done so.
You can read up all about it in this whitepaper, titled “Speculation Behavior in AMD Micro-Architectures.”
AMD Security Vulnerability – The Day After - Seems Financially Motivated - 03/14/2018 06:20 PM
It has been a day after the news broke on the acclaimed AMD Security Vulnerabilities. In this news-item, I wanted to recap and report on the current status and overview, as well as my look on things....
AMD Security Statement from CTO and SVP Mark Papermaster - 01/12/2018 03:30 PM
AMD have updated their web page and clarified a bit more on speculative_execution vulnerabilities with some additional details on current state of affairs and AMD actions....
vbetts
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#5669918 Posted on: 05/16/2019 02:57 PM
Again though, the technology exist. Purpose in this case was not the argument.
Again though, the technology exist. Purpose in this case was not the argument.
Astyanax
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#5669920 Posted on: 05/16/2019 03:00 PM
Sorry, i meant in the case of Ryzen (or any x86 consumer chip really), have clarified in the original post.
Sorry, i meant in the case of Ryzen (or any x86 consumer chip really), have clarified in the original post.
vbetts
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#5669923 Posted on: 05/16/2019 03:03 PM
You're fine buddy.
I know there were rumors about the AMD chip inside of the PS5 featuring a sort of SMT4 or however you want to call it, but anything like that I would take as a grain of salt until we officially here.
Sorry, i meant in the case of Ryzen (or any x86 consumer chip really), have clarified in the original post.
You're fine buddy.
I know there were rumors about the AMD chip inside of the PS5 featuring a sort of SMT4 or however you want to call it, but anything like that I would take as a grain of salt until we officially here.
Astyanax
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Posts: 15724
Joined: 2018-03-21
#5669925 Posted on: 05/16/2019 03:12 PM
Ah, thats not one I had seen or heard of so far.
and looking it up im finding Shin Megami Tensei instead lol.
Ah, thats not one I had seen or heard of so far.
and looking it up im finding Shin Megami Tensei instead lol.
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the P7 PPC with SMT4 has less than half the pipeline stages of a modern intel or amd cpu, IBM can get away with it because their designs are built to specific needs.
modern x86 chips couldn't get away with it without significant latency drawbacks.
info on the p7 is here
https://www.ibm.com/developerworks/community/wikis/form/anonymous/api/wiki/61ad9cf2-c6a3-4d2c-b779-61ff0266d32a/page/25080eb1-3b5d-41e0-a8bb-959168a795af/attachment/0aeafb67-5f8b-475f-8480-cd5a977e3311/media/pwrsysperf-SMT4OnP7.pdf