Ubuntu 22.04 LTS must disable kernel core dumps so that it can fail to a secure state if system initialization fails, shutdown fails or aborts fail.
An XCCDF Rule
Description
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.
- ID
- SV-260473r1044782_rule
- Version
- UBTU-22-213015
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
If kernel core dumps are not required, disable and mask "kdump-tools.service" by using the following command:
$ sudo systemctl mask kdump-tools --now
If kernel core dumps are required, document the need with the ISSO.