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IBM z/OS BUFUSEWARN in the SMFPRMxx must be properly set.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-223772RACF-OS-000160SV-223772r971542_ruleCCI-000139medium
Description
It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required. Without this notification, the security personnel may be unaware of an impending failure of the audit capability, and system operation may be adversely affected. Audit processing failures include software/hardware errors, failures in the audit capturing mechanisms, and audit storage capacity being reached or exceeded. This requirement applies to each audit data storage repository (i.e., distinct information system component where audit records are stored), the centralized audit storage capacity of organizations (i.e., all audit data storage repositories combined), or both. Satisfies: SRG-OS-000343-GPOS-00134, SRG-OS-000344-GPOS-00135, SRG-OS-000046-GPOS-00022
STIGDate
IBM z/OS RACF Security Technical Implementation Guide2026-06-03

Related Frameworks

3 mappings across 4 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (3) 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.

MON-05Response To Event Log Processing Failures
1.00
MON-05.2Event Log Storage Capacity Alerting
1.00
MON-05.1Real-Time Alerts of Event Logging Failure
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (26) 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.

AC-2(4)Automated Audit Actions
1.00
AU-10Non-repudiation
1.00
AU-12Audit Record Generation
1.00
AU-12(1)System-wide and Time-correlated Audit Trail
1.00
AU-14(1)System Start-up
1.00
AU-3Content of Audit Records
1.00
AU-3(1)Additional Audit Information
1.00
AU-4Audit Log Storage Capacity
1.00
AU-4(1)Transfer to Alternate Storage
1.00
AU-5Response to Audit Logging Process Failures
1.00

+16 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) 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.

3.3.4
1.00
CCI3 mappings
CCI-000139
1.00
CCI-001855
1.00
CCI-001858
1.00

Details

Check Text (C-223772r971542_chk)

Refer to IEASYS00 member in SYS1.PARMLIB Concatenation. Determine proper SMFPRMxx member in SYS1.PARMLIB. If BUFUSEWARN is set for "75" (75%) or less, this is not a finding.

Fix Text (F-25433r515005_fix)

Configure the BUFUSEWARN statement in SMFPRMxx to "75" (75%) or less.