IJ35786: DERINPUTSTREAM.GETOCTETSTRING() INCORRECTLY RETURNS 'NULL' INSTEAD OF AN EMPTY PADATA BYTE FOR DERVALUE ENCODING OF ZERO LENGTH.

APAR status

• Closed as program error.

Error description

• Error Message: N/A
  .
  Stack Trace: Java callstack:
  java.lang.NullPointerException
  at
  com.ibm.security.util.DerOutputStream.write(DerOutputStream.java
  :86)
  at
  com.ibm.security.util.DerOutputStream.putOctetString(DerOutputSt
  ream.java:338)
  at
  com.ibm.security.krb5.internal.PAData.asn1Encode(PAData.java:139
  )
  at
  com.ibm.security.krb5.internal.KDCReq.asn1Encode(KDCReq.java:166
  )
  at krb5.auto.KDC.processAsReq(KDC.java:1022)
  at krb5.auto.KDC.processMessage(KDC.java:753)
  at krb5.auto.KDC.access$1(KDC.java:751)
  at krb5.auto.KDC$2.run(KDC.java:1435)
  .
  

Local fix

• N/A
  

Problem summary

• DerInputStream.getOctetString() incorrectly returns 'null'
  instead of an empty PAData byte<OSB><CSB> for DerValue
  encoding of zero length.
  

Problem conclusion

• Modified DerInputStream.getOctetString() to return an empty
  PAData byte<OSB><CSB> instead of 'null' for DerValue
  encoding of zero length.
  The files affected by this APAR are: ibmpkcs.jar (Java 7 & 7.1:
  build_20211026-309, Java 8: build_20211026-310).
  The associated Hursley RTC Problem Report is: PR146436.
  The associated Austin Git issue is: Issue #102 for PKCS.
  The associated Austin APAR issue is: N/A.
  .
  This APAR will be fixed in the following Java Releases:
   8 SR7 FP5 (8.0.7.5)
   7 SR11 FP5 (7.0.11.5)
   7 R1 SR5 FP5 (7.1.5.5)
  .
  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 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