L1 Terminal fault Vulnerability could affect Virtual Machines
Intel has recently reported that another fault- the L1 Terminal Fault vulnerability and two others could potentially affect PCs. This has necessitated safeguards in the form of updates from the company. Intel’s Spectre and Meltdown days are far from over, This Tuesday the company made mention of a third vulnerability- the L1 Terminal Fault Vulnerability that affects the server, workstation processors and client which spells security issues for the company.
According to Intel, The L1 Terminal Fault Vulnerability is similar to already disclosed side channel analysis security issues including what we now know as Meltdown and Spectre.
More about the L1 Terminal Fault Vulnerability:
This new form of vulnerability titled L1 Terminal Fault Vulnerability can be mitigated by keeping systems up to date. A series of updates have been rolled out by industry partners of Intel as well as the open security community which includes microcode updates that were released earlier this year.
At present the L1 Terminal Fault Vulnerability has not been made use of by any malignant party but has only been discovered as an area of potential impact by Intel to which updates can be used to mitigate it.
Users are advised to download the latest updates as well as take all steps to prevent malware and they will be good to go.
New CPU that could withstand the L1 Terminal Fault Vulnerability and more:
Intel’s new next generation Xeon Scalable Processor which is known as Cascade Lake as well as new client processors coming out later this year will have the latest and best when it comes to hardware level security.
Internet tech gurus have been waiting for these new processors for months now.
What does the L1 Terminal Fault Vulnerability do?
The L1 Terminal Vulnerability Fault has got to do with a fault or security hole in the CPU’s L1 data cache. This data cache is a small pool of memory found within each processor that helps determine what instructions will have to be performed next.
Intel previously released microcode updates that mitigate this problem to a certain extent for consumers and enterprise users who run non- virtualized operating systems which basically include most data systems that the company operates.
With these updates no significant performance issues have been noted.
But with L1 Terminal Fault Vulnerability, virtual systems are affected to a greater extent. That is the risk is greater when it comes to virtual systems.IT administrators as well as cloud providers have been urged to make additional safeguards especially when they do not know if all virtualized operating systems have been updated. Such steps would include turning off hyper threading in some cases and allowing hypervisor core scheduling features.
These mitigation efforts do result in performance issues that will vary depending on the type of mitigation effort. The company said that, they with industry partners are looking for options to address these mitigation efforts for the L1 Terminal fault vulnerability. As a part of mitigating the L1 Terminal Fault Vulnerability, the company said that they have developed a system which mitigates the vulnerability only when exploits of the kind are detected.