IBM Support

IT36310: MQ appliance might reload due to error SSL function/TLS

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APAR status

  • Closed as program error.

Error description

  • MQ appliance might reload if an administrative user activity
involves SSL/TLS.

mqa#? show time
    Local time: Mon Feb  1 09:10:34 2021
     Time zone: EST
Time zone spec: EST5EDT,M3.2.0/2:00,M11.1.0/2:00
Uptime: reload: 2 days 05:21:41
Uptime: reboot: 22 days 06:28:38

Failure Notification shows that reload was due to a crash...

<FailureNotificationStatus2>
<Date>20210130035028624EST</Date>
<Reason>crash</Reason>
<UploadStatus>in-progress</UploadStatus>

Local fix

  • 



Problem summary


    

  • ****************************************************************
USERS AFFECTED:
All users of MQ appliance


Platforms affected:
MultiPlatform

****************************************************************
PROBLEM DESCRIPTION:
Memory overwrite in an SSL/TLS function caused unexpected MQ
appliance reload.

Note that this issue affects administrative or REST API
connections to the appliance, MQ channels using TLS protection
use alternative cryptographic logic and are not impacted.

    



Problem conclusion


    

  • MQ appliance code has been modified to prevent the memory
corruption.

---------------------------------------------------------------
The fix is targeted for delivery in the following PTFs:

Version    Maintenance Level
v9.2 LTS   9.2.0.2
v9.x CD    9.2.3

The latest available maintenance can be obtained from
'WebSphere MQ Recommended Fixes'
http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037

If the maintenance level is not yet available information on
its planned availability can be found in 'WebSphere MQ
Planned Maintenance Release Dates'
http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
---------------------------------------------------------------

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IT36310
    • 

  • Reported component name
    MQ APPL M2002 V
    • 

  • Reported component ID
    5737H4701
    • 

  • Reported release
    920
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    YesHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2021-03-22
    • 

  • Closed date
    2021-03-31
    • 

  • Last modified date
    2021-03-31
    • 





    

  • 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
    MQ APPL M2002 V
    • 

  • Fixed component ID
    5737H4701
    • 



Applicable component levels


    








      
              
                            

              

              [{"Line of Business":{"code":"LOB36","label":"IBM Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SS5K6E","label":"IBM MQ Appliance"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"920"}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            01 April 2021
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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