Oracle Weblogic Server Critical Patch Update – April 2021 (Introducing Stack Patch Bundle)

Information related to WebLogic PSU in General

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Information Specific to April 2021 PSU :

1. April 2021 PSU patch availability

2. List of BUGs fixed in this PSU

3. Popular Known Issues in this PSU release

4. What is Stack Patch Bundle (SPB)?

   • Steps to install Stack Patch Bundle using Opatch tool

   • Demo Video for installing April 2021 SPB.

   • Demo Video to check if SPB will be applied successfully before installing it.

5. Critical Patch Update Availability for Oracle WebLogic Server Proxy Plug-Ins

6. Announcement of Third-Party Component Updates

7. Map of CVEs to the Critical Patch Update Advisory or Security Alert 

8. Post-Install Actions and Considerations for WebLogic Server Patch Set Updates

1. April 2021 PSU patch availability

NOTE: Ensure to obtain the current cycle’s OPatch prerequisite, WLS PSU, JDK update, and other security patches from the CPU document!

Oracle WebLogic Server 14.1.1.0 :    

Click the document below to go directly to the most current patches for 14.1.1 –> 

My Oracle Support

Note 2725756.1

Oracle WebLogic Server 12.2.1.4 :

Click the document below to go directly to the most current patches for 12.2.1.4 –> 

My Oracle Support

Note 2725756.1

Oracle WebLogic Server 12.2.1.3 :

Click the document below to go directly to the most current patches for 12.2.1.3 –> 

My Oracle Support

Note 2725756.1

Oracle WebLogic Server 12.1.3 :

NOTE: Please check “Error Correction dates” for more information on the extended support for this version.

Click the document below to go directly to the most current patches for 12.1.3 –> 

My Oracle Support

Note 2725756.1

Oracle WebLogic Server 10.3.6 :

NOTE: Please check “Error Correction dates” for more information on the extended support for this version.

Click the document below to go directly to the most current patches for 10.3.6  –> 

My Oracle Support

Note 2725756.1

Reference: 

Critical Patch Update (CPU) Program Oct 2020 Patch Availability Document (PAD) (Doc ID 2694898.1)    

Patch Set Update (PSU) Release Listing for Oracle WebLogic Server (WLS) (Doc ID 1470197.1)    

2. List of BUGs fixed in this PSU

Refer to “Section 8: Bugs Fixed by This Patch” in README document of PSU.

OR

Reference :

Patch Set Update (PSU) Release Listing for Oracle WebLogic Server (WLS) (Doc ID 1470197.1)    

3. Popular Known Issues in this PSU release

Reference :

WebLogic Server PSU – Popular Known Issues and Information (Doc ID 2458832.1)    

4. What is Stack Patch Bundle (SPB) and how to apply it?

Reference :

Introducing the Stack Patch Bundle (SPB) for Oracle WebLogic Server (Doc ID 2764636.1)    

• Steps to install Stack Patch Bundle using Opatch tool

• Demo Video for installing April 2021 SPB.

• Demo Video to check if SPB will be applied successfully before installing it.

5. Critical Patch Update Availability for Oracle WebLogic Server Proxy Plug-Ins

Click the document below to go directly to the most current “Critical Patch Update Availability for Oracle WebLogic Server Proxy Plug-Ins”  –> 

My Oracle Support

Note 2725756.1

8. Post-Install Actions and Considerations for WebLogic Server Patch Set Updates

Reference :

Security Advice and Post-Install Information for Oracle WebLogic Server PSUs (Doc ID 2764668.1)

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