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IJ44621: COMPUTING DIFFIE-HELLMAN SECRET REPEATEDLY, USING IBMJCEPLUS, CAUSES A SMALL MEMORY LEAK

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APAR status

  • Closed as program error.

Error description

  • Error Message: N/A
.
Stack Trace: N/A
.
The memory leak was observed with Java 8, SR7 FP16 or later.
The problem did not occur when IBMJCEPlus was removed from the
provider list.

Local fix

  • In JRE_HOME/lib/security/java.security file, place IBMJCE ahead
of IBMJCEPlus in provider list

Problem summary

  • Computing DIffie-Hellman secret repeatedly, using IBMJCEPlus,
cause a small memory leak.
The  memory leak occurs when internal data structure used during
the computation of secret is not freed.

Problem conclusion

  • The JVM has been fixed not to leak memory during Diffie-Hellman
secret computation.
The associated Hursley RTC Problem Report is 148522
Austin GitHub issue:  500
JVMs affected: Java 8.0
The fix was delivered for Java 8 SR8
The build levels: 2022-12-12
The affected files: native libraries libjgskit.so, jgskit.dll
.
This APAR will be fixed in the following Releases:
.
IBM SDK, Java Technology Edition
   8    SR8       (8.0.8.0)
.
Contact your IBM Product's Service Team for these Service
Refreshes and Fix Packs.
For those running stand-alone, information about the available
maintenance can be found at:
           https://www.ibm.com/support/pages/java-sdk

Temporary fix

  • 



Comments


    

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APAR Information




    

  • APAR number
    IJ44621
    • 

  • Reported component name
    SECURITY
    • 

  • Reported component ID
    620700125
    • 

  • Reported release
    270
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2022-12-14
    • 

  • Closed date
    2023-01-26
    • 

  • Last modified date
    2023-01-26
    • 





    

  • 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


    








      
              
                            

              

              [{"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","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            27 January 2023
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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