AMD confirms that AMD Ryzen are immune to SPOILER thanks to Zen architecture
After insistence AMD has confirmed that its AMD Ryzen processors are immune to SPOILER thanks to its Zen architecture.
On January 3, 2018, the Specter and Meltdown vulnerabilities that affect Intel, AMD and ARM processors jumped. Then a great controversy broke out in this regard, especially after AMD denied being affected to end up acknowledging that it was. A few weeks ago it was discovered that Intel was affected by SPOILER, a new vulnerability at the silicon level. The researchers already said that this problem was only Intel's, even so, AMD has come to the fore to say that it does not affect them.
AMD reports that they are not affected by SPOLER
Researchers from the Worcester Polytechnic Institute and the University of Lübeck have discovered this vulnerability. SPOILER exploits "a weakness in Intel's memory subsystem address speculation." Thanks to this vulnerability, a Rowhammer-type attack is made easier. The researchers announced that correcting the problem is nearly impossible by software. Intel for its part has said that it is working on a software patch that solves the problem.
Logically, users have asked AMD a lot if their AMD Ryzen processors are vulnerable to SPOILER. The company has reported that its processors are completely immune thanks to the Zen architecture.
“We are aware of the report of a new security exploit called SPOILER that can gain access to partial address information during load operations. We believe that our products are not susceptible to this problem due to our unique processor architecture.
The SPOILER exploit can gain access to partial address information about address bit 11 during load operations. We believe that our products are not susceptible to this problem because AMD processors do not use partial address matching at bit 11 address when resolving load conflicts. "
Source: AMD