A separate RHEL 8 filesystem must be used for the /tmp directory.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-230295	RHEL-08-010543	SV-230295r627750_rule		Medium

Description
The use of separate file systems for different paths can protect the system from failures resulting from a file system becoming full or failing.

STIG	Date
Red Hat Enterprise Linux 8 Security Technical Implementation Guide	2021-03-04

Details

Check Text ( C-32964r567631_chk )
Verify that a separate file system/partition has been created for non-privileged local interactive user home directories. $ sudo grep /tmp /etc/fstab /dev/mapper/rhel-tmp /tmp xfs defaults,nodev,nosuid,noexec 0 0 If a separate entry for the file system/partition "/tmp" does not exist, this is a finding.

Fix Text (F-32939r567632_fix)
Migrate the "/tmp" directory onto a separate file system/partition.