Two new vulnerabilities in Linux-based operating systems could let attackers bypass mitigations for speculative attacks such as Spectre and Meltdown. If successfully exploited, attackers could obtain sensitive information from kernel memory. Patches for the security issues were released on March 20, with Ubuntu, Red Hat deploying fixes for the vulnerabilities in their respective Linux distributions. The bugs could also potentially be exploited if a malicious actor was able to gain access to an exploitable machine via a prior step such as downloading malware onto the machine to achieve remote access.
Source: https://thehackernews.com/2021/03/new-bugs-could-let-hackers-bypass.html