Field Notice: FN - 72044 - Patch AP374356 Installs Tomcat 9.0.26 and in Some Scenarios the New Version Causes a Deadlock in the HTTP Threads - Software Upgrade Recommended

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Updated:February 15, 2021
Document ID:FN72044

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Notice

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.

Revision History

Revision Publish Date Comments
1.0
08-Feb-21
Initial Release

Products Affected

Affected OS Type Affected Software Product Affected Release Affected Release Number Comments
NON-IOS
Application Patches
22.0
22.0.2020.05
NON-IOS
Application Patches
23.0
23.0.2020.05

Defect Information

Defect ID Headline
CSCvf34445 There were no defects filed with this field notice at the time of publication.

Problem Description

Application of AP374356 installs Tomcat 9.0.26. In some scenarios, this new version causes a deadlock in the HTTP threads.

Background

Note: This field notice was originally posted in the BroadSoft Xchange portal and has been moved over to Cisco.com as-is for historical purposes.

Problem Symptom

The installation of this patch can block several HTTP threads and cause an outage.

Workaround/Solution

BroadWorks patches can now be downloaded through the Cisco Software Download Center after logging in with your Cisco.com (CCO) account.

The version of BroadWorks that is currently deployed as well as the patches currently activated can be checked by executing the get versions all command from the CLI. More information on how to check the patch level can be found in the Cisco BroadWorks Maintenance Guide.

Workaround

Remove all versions of AP374356.

Patch Information

  • AP.as.22.0.1123.ap374356
  • AP.nfm.22.0.1123.ap374356
  • AP.ns.22.0.1123.ap374356
  • AP.ps.22.0.1123.ap374356
  • AP.ums.22.0.1123.ap374356
  • AP.xsa.22.0.1123.ap374356
  • AP.xsp.22.0.1123.ap374356
  • AP.as.23.0.1075.ap374356
  • AP.ns.23.0.1075.ap374356
  • AP.ps.23.0.1075.ap374356
  • AP.xsp.23.0.1075.ap374356

Patch

Apply patches ap374356 and ap374838.

These patches have been released to deliver Tomcat 9.0.34 with resolution to the deadlock of HTTP threads existing in earlier versions:

  • AP.platform.22.0.1123.ap374838
  • AP.as.22.0.1123.ap374838
  • AP.nfm.22.0.1123.ap374838
  • AP.ns.22.0.1123.ap374838
  • AP.ps.22.0.1123.ap374838
  • AP.ums.22.0.1123.ap374838
  • AP.xsa.22.0.1123.ap374838
  • AP.xsp.22.0.1123.ap374838
  • AP.platform.23.0.1075.ap374838
  • AP.as.23.0.1075.ap374838
  • AP.ns.23.0.1075.ap374838
  • AP.ps.23.0.1075.ap374838
  • AP.xsp.23.0.1075.ap374838

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

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