APAR status
Closed as program error.
Error description
Error Message: N/A . Stack Trace: java.lang.NullPointerException: at com.ibm.security.jgss.mech.krb5.Krb5Context.authenticate(Krb5Con text.java:2314) at com.ibm.security.jgss.mech.krb5.Krb5Context.acceptSecContext(Krb 5Context.java:885) at com.ibm.security.jgss.mech.krb5.Krb5Context.acceptSecContext(Krb 5Context.java:940) at com.ibm.security.jgss.mech.spnego.SPNEGOContext.processInitToken (SPNEGOContext.java:1303) at com.ibm.security.jgss.mech.spnego.SPNEGOContext.acceptSecContext (SPNEGOContext.java:660) at com.ibm.security.jgss.GSSContextImpl.acceptSecContext(GSSContext Impl.java:586) at com.ibm.security.jgss.GSSContextImpl.acceptSecContext(GSSContext Impl.java:493) .
Local fix
N/A
Problem summary
Per RFC-1510 The Kerberos Network Authentication Service (V5) the use of message sequence numbers is OPTIONAL. If message sequence numbers are NOT used, the associated field in the Kerberos client Authenticator is NULL. The changes associated with PR142695 "Oracle Security Fix 8226352: Improve Kerberos interop capabilities" did not properly allow for the legacy JGSS component NULL sequence number handling.
Problem conclusion
Added Kerberos client Authenticator NULL sequence number handling to com.ibm.security.jgss.mech.krb5.Krb5Context.authenticate() The files affected by this APAR are: ibmjgssprovider.jar (build build_20201120--28). The associated Hursley RTC Problem Report is 144525. The associated Austin Git issue is Issue# 1 for IBMJGSS. The associated Austin APAR issue is IJ29317. JVMs affected include: Java 8.0. The fix was delivered for Java 8.0 SR6 FP25. . This APAR will be fixed in the following Java Releases: 8 SR6 FP25 (8.0.6.25) . Contact your IBM Product's Service Team for these Service Refreshes and Fix Packs. For those running stand-alone, information about the available Service Refreshes and Fix Packs can be found at: https://www.ibm.com/developerworks/java/jdk/
Temporary fix
Comments
APAR Information
APAR number
IJ29416
Reported component name
SECURITY
Reported component ID
620700125
Reported release
270
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2020-11-20
Closed date
2020-11-23
Last modified date
2020-11-23
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
[{"Line of Business":{"code":"LOB36","label":"IBM Automation"},"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSNVBF","label":"Runtimes for Java Technology"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"270"}]
Document Information
Modified date:
24 November 2020