STIGUI
V-223772CAT II — Medium severitySV-223772r971542_rule

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

Rule version RACF-OS-000160 · STIG v9 · 2026-09-01

Discussion

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

Check

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

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

Identifiers

Group ID
V-223772
Group title
SRG-OS-000343-GPOS-00134
Rule ID
SV-223772r971542_rule
Check ID
C-25445r515004_chk
Fix ID
F-25433r515005_fix