YUM must remove all software components after updated versions have been installed on OL 8.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-248595	OL08-00-010440	SV-248595r853773_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 adversaries. Some information technology products may remove older versions of software automatically from the information system.

STIG	Date
Oracle Linux 8 Security Technical Implementation Guide	2022-12-06

Details

Check Text ( C-52029r779349_chk )
Verify the operating system removes all software components after updated versions have been installed. Check if YUM is configured to remove unneeded packages with the following command: $ sudo grep -i clean_requirements_on_remove /etc/yum.conf clean_requirements_on_remove=True If "clean_requirements_on_remove" is not set to "True", commented out, or missing from "/etc/yum.conf", this is a finding.

Check Text ( C-52029r779349_chk )

Verify the operating system removes all software components after updated versions have been installed.

Check if YUM is configured to remove unneeded packages with the following command:

$ sudo grep -i clean_requirements_on_remove /etc/yum.conf

clean_requirements_on_remove=True

If "clean_requirements_on_remove" is not set to "True", commented out, or missing from "/etc/yum.conf", this is a finding.

Fix Text (F-51983r779350_fix)
Configure OL 8 to remove all software components after updated versions have been installed. Set the "clean_requirements_on_remove" option to "True" in the "/etc/yum.conf" file: clean_requirements_on_remove=True