Intel confirmed that a fixed system vulnerability affects hardware performance. Basically, this will affect data centers and not owners of desktop PCs. As reported by the BBC.
A bug called Zombieload is a follower of the earlier ones – Spectre, Meltdown and Foreshadow.
Update: Up to 40% performance loss from the new “ZombieLoad” Intel vulnerability. My CPU performance is bad enough already. (Spectre and Meltdown fixes slowed down my performance 20-30%). I may have to save up for a new PC with AMD.
— Sonicrush007 🌐 (@Sonicrush007) 14 мая 2019 г.
Zombieload was discovered by researchers from the Graz University of Technology in Austria and the Catholic University of Leuven in Belgium. In theory, it could allow attackers to spy on tasks performed by any central processing unit (CPU) – Intel Core or Xeon – which was released since 2011 until the theft of confidential information.
Currently, it is not clear whether someone managed to use the bug for mercenary purposes.
In order to fix the vulnerability, Intel has released microcode updates for most of its processors. It is expected to affect performance, with impact levels varying depending on workload.
Intel claims that the impact will be relatively minimal, but the performance of individual data centers may drop to 10%.
TU Graz and VUSec recommend that Intel software manufacturers disable features that allow you to perform more tasks in parallel. In turn, the chip manufacturer challenged this by assessing the severity level of not more than average.
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