Today's Hard|Forum Post
Today's Hard|Forum Post

Thursday June 14, 2018

Intel Announces New Speculative Execution Side Channel Vulnerability

There's a new Core processor vulnerability that Intel has just announced and they consider this one to be of moderate severity. The Lazy FP state restore technique is the cause of this vulnerability and Intel is recommending that developers use the Eager FP state restore instead of Lazy FP state restore to work around this issue. Are these ever going to stop? This is not good for Intel and they need to get some new processors out on the market ASAP to put all of this to bed.

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Intel would like to thank Julian Stecklina from Amazon Germany, Thomas Prescher from Cyberus Technology GmbH (https://www.cyberus-technology.de/), Zdenek Sojka from SYSGO AG (http://sysgo.com), and Colin Percival for reporting this issue and working with us on coordinated disclosure.

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UDPATE: AMD reached out to us and had this to say:

You may be aware of a new security vulnerability being described as ‘Lazy FPU’. Based on our analysis to-date, we do not believe our products are susceptible to the recent security vulnerability identified around lazy FPU switching.

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