UCF STIG Viewer Logo

The Red Hat Enterprise Linux operating system must disable Kernel core dumps unless needed.


Finding ID Version Rule ID IA Controls Severity
V-72057 RHEL-07-021300 SV-86681r2_rule Medium
Kernel core dumps may contain the full contents of system memory at the time of the crash. Kernel core dumps may consume a considerable amount of disk space and may result in denial of service by exhausting the available space on the target file system partition.
Red Hat Enterprise Linux 7 Security Technical Implementation Guide 2018-11-28


Check Text ( C-72289r1_chk )
Verify that kernel core dumps are disabled unless needed.

Check the status of the "kdump" service with the following command:

# systemctl status kdump.service
kdump.service - Crash recovery kernel arming
Loaded: loaded (/usr/lib/systemd/system/kdump.service; enabled)
Active: active (exited) since Wed 2015-08-26 13:08:09 EDT; 43min ago
Main PID: 1130 (code=exited, status=0/SUCCESS)
kernel arming.

If the "kdump" service is active, ask the System Administrator if the use of the service is required and documented with the Information System Security Officer (ISSO).

If the service is active and is not documented, this is a finding.
Fix Text (F-78409r1_fix)
If kernel core dumps are not required, disable the "kdump" service with the following command:

# systemctl disable kdump.service

If kernel core dumps are required, document the need with the ISSO.