25 months ago
If you own a system with an Intel CPU manufactured some time in the last ten years, a design flaw has been discovered that has OS vendors scrambling to put a patch in place:
Both Microsoft and the Linux kernel developers are working on updates, with FreeBSD believed to follow shortly. Mac OS X will also need an update. The OS workarounds being put together will reduce the performance of your Intel PC from 3-30% -- possibly more -- depending on the nature of the workload. Further, the flaw is such that a fix in CPU microcode is not possible. So to be rid of the issue and get your performance back, you'll have to buy your Intel CPU again once they've fixed the HW.
This is probably Intel's biggest CPU design blunder since the Pentium floating point bug and the
AMD CPUs are apparently not affected by the issue. So all you Ryzen-heimers can enjoy an extra helping of smug :-).
The details of the exploit have been released: https://meltdownattack.com/