AMD processors from as early as 2011 to 2019 carry previously undisclosed vulnerabilities that open them to two new side-channel attacks. AMD says the new potential attack vectors leverage the L1 data (L1D) cache way predictor in AMD’s Bulldozer microarchitecture to leak sensitive data from the processors and compromise the security by recovering the secret key used during encryption. The research was published by a group of academics from the Graz University of Technology and Research Institute of Computer Science and Random Systems (IRISA)
Source: https://thehackernews.com/2020/03/amd-processors-vulnerability.html