IV68763: MESSAGEDIGEST.CLOSE() RETURNS INCOMPLETE CLONE FOR SHA-1

APAR status

• Closed as program error.

Error description

• Error Message: After getting a MessageDigest via
  getInstance("SHA-1"), if two threads attempt to clone() the
  message digest, the clone is not "complete", in that if the two
  threads then generate a hash on the cloned copies, the resulting
  digest sometimes overlaps.
  .
  Stack Trace: N/A
  .
  N/A
  

Local fix

• N/A
  

Problem summary

• MessageDigest.close() returns incomplete clone for SHA-1
  

Problem conclusion

• MessageDigest.clone() for algorithm SHA-1 and MD5 have been
  fixed to add the missing array clone.The associated RTC PR is
  82553The associated Austin CMVC defect is 116233The associated
  Hursley CMVC defect is 202656The associated Austin APAR is
  IV68373JVMs affected : Java 5.0, Java 6.0, Java 6.1, Java 7.0,
  Java 7.1The fix was delivered for Java 5.0 SR16FP10, Java 6.0
  SR16FP4, Java 6.1 SR8FP4, Java 7.0 SR9, Java 7.1 SR3The affected
  jar is "ibmjceprovider.jar".The build level of this jar for the
  affected releases is "20150108"
  .
  This APAR will be fixed in the following Java Releases:
     7    SR9       (7.0.9.0)
     5.0  SR16 FP10 (5.0.16.10)
     6    SR16 FP4  (6.0.16.4)
     6 R1 SR8 FP4   (6.1.8.4)
     7 R1 SR3       (7.1.3.0)
  .
  Contact your IBM Product's Service Team for these Service
  Refreshes and Fix Packs.
  For those running stand-alone, information about the 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:

  IV68742

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

Fix information

• Fixed component name

  JAVA 5 SECURITY

• Fixed component ID

  620500125

Applicable component levels

• R500 PSN

     UP