OL 9 must remove all software components after updated versions have been installed.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-271522 | OL09-00-000495 | SV-271522r1091278_rule | Low |
| Description |
| Previous versions of software components that are not removed from the information system after updates have been installed may be exploited by some adversaries. |
| STIG | Date |
| Oracle Linux 9 Security Technical Implementation Guide | 2025-05-08 |
Details
| Check Text (C-75572r1091276_chk) |
| Verify that OL 9 removes all software components after updated versions have been installed with the following command: $ grep clean /etc/dnf/dnf.conf clean_requirements_on_remove=True If clean_requirements_on_remove is not set to "True", this is a finding. |
| Fix Text (F-75479r1091277_fix) |
| Configure OL 9 to remove all software components after updated versions have been installed. Edit the file /etc/dnf/dnf.conf by adding or editing the following line: clean_requirements_on_remove=1 |