Security flaw found in Intel chips, fix likely to slow down Windows and macOS devices by up to 30%
NEW DELHI: Intel chips are found to have a design flaw that would need major changes by the company in the Windows and Linux kernels.
As mentioned by Beta News, the fix is under works already and has been rolled out to some Windows Insider members.
As for the rest, both Windows and macOS PCs are likely to be affected by this flaw.
The chip maker has not yet detailed the flaw and how serious the issue is. It is said that devices may witness system slow down rate ranging from 5% to a massive 30%. It has been reported that some patches for the Linux version has already been developed but is yet to roll out. The fix may arrive at the time of Microsoft’s Patch Tuesday for January.
Thomas Lendacky, PMTS Software Engineer at AMD, has said in the lkml.org website that AMD chips are not affected by this flaw.
“AMD processors are not subject to the types of attacks that the kernel page table isolation feature protects against.”
The AMD microarchitecture does not allow memory references, including speculative references. That access higher privileged data when running in a lesser privileged mode when that access would result in a page fault,” he said.
One of the software developers named ‘PythonSweetness’ has mentioned on the website that, “In the worst case the software fix causes huge slowdowns in typical workloads.
There are hints the attack impacts common virtualization environments including Amazon EC2 and Google Compute Engine. Additional hints the exact attack may involve a new variant of Rowhammer.”
The Register confirms the issue saying that the fix will slow down the PCs. “The downside to this separation is that it is relatively expensive, time-wise, to keep switching between two separate address spaces for every system call and for every interrupt from the hardware.