Fix (APAR): PH44271 Status: Fix Release: 9.0.5.11 Operating System: AIX,Linux,Windows Supersedes Fixes: CMVC Defect: xxxxxx Byte size of APAR: 185566949 Date: 2022-03-11 Abstract: Vulnerability in IBM HTTP Server used by IBM WebSphere Application Server due to Expat (CVE-2022-25315 CVSS 7.8 and more) Description/symptom of problem: PH44271 resolves the following problem: ERROR DESCRIPTION: Confidential for Security Integrity ifix CVE-2022-25315 CVSS 7.8 and more PROBLEM SUMMARY: Confidential for Security Integrity ifix CVE-2022-25315 CVSS 7.8 and more. PROBLEM CONCLUSION: Confidential for CVE-2022-25315 CVSS 7.8 and more. Directions to apply fix: 1) Stop IBM HTTP Server. AIX Only: run "slibclean" as root. 2) Backup your IBM HTTP Server installation directory 3) Extract this interim fix with your IBM HTTP Server installation as your working directory 4) Start IBM HTTP Server Directions to remove fix: 1) Stop IBM HTTP Server. AIX Only: run "slibclean" as root. 2) Restore earlier IBM HTTP Server installation root from backup. Or, extract a previous maintenance level archive install on top of current installation 2) Start IBM HTTP Server Directions to re-apply fix: 1) Stop IBM HTTP Server. 2) Follow the directions to apply the fix. 3) Restart IBM HTTP Server. Additional Information: