CVE-2023-20593 (Cross-Process Information Leak on AMD Zenbleed systems) was published in the official security bulletin  on July 25th, 2023. Please read this security blog to learn more about this vulnerability.

Table of content:

1. Vulnerability description 

2. Mitigation guide for CloudLinux OS

3. Updates as of August 3, 2023 - clarification on OS versions required for mitigation

4. Updates as of August 11, 2023 - update command for CloudLinux OS 7 hybrid added