Fix (APAR):  PH42762

Status:  Fix

Release:  9.0.5.10,9.0.5.9,9.0.5.8,9.0.5.7,9.0.5.6,9.0.5.5,9.0.5.4,9.0.5.3

Operating System:  AIX,HP-UX,IBM i,Linux,Solaris,Windows,z/OS

Supersedes Fixes:  PH42762,PH37034,PH42728

CMVC Defect:  xxxxxx

Byte size of APAR:  7205405

Date: 2021-12-15

Abstract:  Vulnerability in Apache Log4j affects WebSphere Application Server (CVE-2021-4104 CVSS 8.1, CVE-2021-45046 CVSS 3.7)

Description/symptom of problem:  
PH42762 resolves the following problem:

ERROR DESCRIPTION:
Vulnerability in Apache Log4j affects WebSphere Application Server (CVE-2021-4104 CVSS 8.1, CVE-2021-45046 CVSS 3.7)                                                     

PROBLEM SUMMARY:
Vulnerability in Apache Log4j affects WebSphere Application Server (CVE-2021-4104 CVSS 8.1, CVE-2021-45046 CVSS 3.7)

PROBLEM CONCLUSION:
Confidential for CVE-2021-4104, CVE-2021-45046



Directions to apply fix:  
Install Fix to all WebSphere installations unless special instructions are included below.

Special Instructions: YES

CRITICAL: If the UDDI or kc.war applications has been installed (deployed) they must be updated/redeployed after applying this fix. Note: The copy of kc.war inside of isclite.ear does not require update/redeployment.


NOTE:
The user must:
* Logged in with the same authority level when unpacking a fix, fix pack or refresh pack.
* Be at V1.8.5 or newer of the Installation Manager. Certain iFixes may require a newer version of the Installation Manager and the Installation Manager will inform you during the installation process if a newer version is required.

The IBM Information Center can provide details, if needed, on the use of the Installation Manager to apply the iFixes.
http://www.ibm.com/support/knowledgecenter/SSDV2W_1.8.5/com.ibm.cic.agent.ui.doc/helpindex_imic.html.  Shutdown WebSphere Application Server before applying the iFixes.  Restart WebSphere Application Server after applying the iFixes.

Directions to remove fix:  

The IBM Information Center can provide details, if needed, on the use of the Installation Manager to remove the iFixes.
http://www.ibm.com/support/knowledgecenter/SSDV2W_1.8.5/com.ibm.cic.agent.ui.doc/helpindex_imic.html.  Shutdown WebSphere Application Server before removing the iFixes.  Restart WebSphere Application Server after removing the iFixes.

Directions to re-apply fix:  
1) Shutdown WebSphere Application Server.

2) Follow the Fix instructions to apply the fix.

3) Restart WebSphere Application Server.



Additional Information: