IJ54953: HTTPS CHANNEL BINDING SUPPORT

APAR status

• Closed as program error.

Error description

• Error Message: N/A
  .
  Stack Trace: N/A
  .
  

Local fix

Problem summary

• Support has been added for TLS channel binding tokens for
   Negotiate/Kerberos authentication over HTTPS through
   javax.net.HttpsURLConnection.
   Channel binding tokens are increasingly required as
  an enhanced form
   of security. They work by communicating from a
  client to a server
   the client's understanding of the binding between
  connection
   security, as represented by a TLS server cert, and
  higher level
   authentication credentials, such as a username and
  password. The
   server can then detect if the client has been fooled
  by a MITM (Man
   In The Middle) and shutdown the session or
  connection. The feature
   is controlled through a new system property
   `jdk.https.negotiate.cbt` which is described fully
  in <OSB>Networking
   Properties
  
  <CSB>(https://docs.oracle.com/javase/8/docs/api/java/net/doc-fil
  es/net-properties.html).
  

Problem conclusion

• A fix is made to IBMJGSS/ibmjgssprovider.jar
   The associated Hursley RTC Problem Report is 152568
   The associated Austin git issue IBMJGSS#122
   JVMs affected: Java 8
   The fix was delivered for Java 8SR8FP50 The affected
  jar is "ibmjgssprovider.jar".
   The build level of this jar for the affected
  releases is "build_20250523--441"
   A fix is made to JSSE/ibmjsseprovider2.jar
   The associated Hursley RTC Problem Report is 152568
   The associated Austin git issue IBMJGSS#356
   The fix was delivered for Java 8SR8FP50 The affected
  jar is "ibmjsseprovider2.jar".
   The build level of this jar for the affected
  releases is "build_20250527--455"
  
  .
  This APAR will be fixed in the following Releases:
  .
  IBM Semeru Runtimes
  IBM SDK, Java Technology Edition
   8 SR8 FP50 (8.0.8.50)
  .
  Downloads and supplementary documentation can be found at the
  following locations:
  - For non z/OS operating systems:
   - IBM Semeru Runtimes, Version 11 and later
   https://www.ibm.com/semeru-runtimes/downloads/
   - IBM SDK, Java Technology Edition, Version 8
   https://www.ibm.com/support/pages/java-sdk-downloads/
  - For the z/OS operating system:
   - Java SDK Products on z/OS
   https://www.ibm.com/support/pages/java-sdk-products-zos
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  SECURITY

• Fixed component ID

  620700125

Applicable component levels