https://wccftech.com/intel-microsoft-and-google-discover-ssb-variant-4-fourth-variant-of-spectre-and-meltdown-bugs-that-risks-data-leak-via-side-channel-analysis/

Early this year, reports of a major design flaw in Intel’s chipsets created mass panic across the tech world. The vulnerabilities, later identified as Spectre and Meltdown, allowed programs to access kernel-level data. Kernel level data is generally invisible from day to day applications and consists of sensitive information such as passwords and login keys.

The fix required sacrificing one major processing advancement that has allowed for major performance gains over the years. It required isolating kernel memory and user applications, and in the process also to sacrifice efficient. performance. However, as it was initially feared, Spectre and Meltdown were not the last of such vulnerabilities. Microsoft, Google, and Intel have discovered another vulnerability dubbed as Speculative Store Bypass Variant 4. Take a look below for all the details.