AlmaLinux OS 9 must not have the tuned package installed.

STIG ID: ALMA-09-030930  |  SRG: SRG-OS-000095-GPOS-00049 |  Severity: medium |  CCI: CCI-000381 |  Vulnerability Id: V-269353

Vulnerability Discussion

The tuned package contains a daemon that tunes the system settings dynamically. It does so by monitoring the usage of several system components periodically.

Based on that information, components will then be put into lower or higher power savings modes to adapt to the current usage. The tuned package is not needed for normal OS operations.

Check

Verify that the tuned package is not installed with the following command:

$ dnf list --installed tuned

Error: No matching Packages to list

If the "tuned" package is installed and is not documented with the information system security officer (ISSO) as an operational requirement, this is a finding.

Fix

Remove the tuned package with the following command:

$ dnf remove tuned