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The Ubuntu operating system must disable kernel core dumps so that it can fail to a secure state if system initialization fails, shutdown fails or aborts fail.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-238334UBTU-20-010413SV-238334r958550_ruleCCI-001190medium
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.
STIGDate
Canonical Ubuntu 20.04 LTS Security Technical Implementation Guide2025-05-16

Related Frameworks

1 mapping across 4 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (9) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

BCD-01Business Continuity Management System (BCMS)
1.00
CFG-02Secure Baseline Configurations
1.00
CRY-01Use of Cryptographic Controls
1.00
DCH-01Data Protection
1.00
IAC-21Least Privilege
1.00
SEA-01Secure Engineering Principles
1.00
SEA-01.2Achieving Resilience Requirements
1.00
SEA-02Alignment With Enterprise Architecture
1.00
SEA-07.2Fail Secure
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (7) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AU-3(2)Centralized Management of Planned Audit Record Content
1.00
AU-5Response to Audit Logging Process Failures
1.00
SC-24Fail in Known State
1.00
SC-5Denial-of-service Protection
1.00
SC-7Boundary Protection
1.00
SC-7(11)Restrict Incoming Communications Traffic
1.00
SC-7(5)Deny by Default — Allow by Exception
1.00
CCI1 mapping
CCI-001190
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (2) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

PR.DS-10
1.00
PR.IR-03
1.00

Who does this work

13 NICE work roles and 8 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-238334r958550_chk)

Verify that kernel core dumps are disabled unless needed. Check if "kdump" service is active with the following command: $ systemctl is-active kdump.service inactive If the "kdump" service is active, ask the SA if the use of the service is required and documented with the ISSO. If the service is active and is not documented, this is a finding.

Fix Text (F-41503r654176_fix)

If kernel core dumps are not required, disable the "kdump" service with the following command: $ sudo systemctl disable kdump.service If kernel core dumps are required, document the need with the ISSO.