IBM Support

IT35081: TCP listener port value is not validated against the documented maximum value of 65535

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APAR status

  • Closed as program error.

Error description

  • When defining an MQ listener object, with a transport type of
    TCP, the command server incorrectly allows values up to
    999999999.
    
    The maximum valid value is 65535, and values above this number
    will be truncated
    

Local fix

  • Ensure that LISTENER objects of TRPTYPE(TCP) are defined with a
    value of or below 65535.
    

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users who attempt to define a TCP listener object with an
    invalid PORT value, higher than 65535.
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    The MQ command server validation logic did not correctly enforce
    the maximum value of 65535.
    

Problem conclusion

  • The MQ command server validation logic has been corrected such
    that values above 65535 for the listener's TCP port number will
    be rejected when creating or modifying a TCP listener
    definition.
    
    Any existing TCP listener definitions with a value higher than
    65535 will continue to exhibit the current truncation
    behavior,and should be manually corrected to a valid value by an
    MQ administrator.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v9.2 LTS   9.2.0.2
    v9.x CD    9.2.1
    
    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

    IT35081

  • Reported component name

    MQ BASE V9.2

  • Reported component ID

    5724H7281

  • Reported release

    920

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2020-11-27

  • Closed date

    2021-03-23

  • Last modified date

    2021-07-07

  • 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 BASE V9.2

  • Fixed component ID

    5724H7281

Applicable component levels

[{"Type":"MASTER","Line of Business":{"code":"LOB36","label":"IBM Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"All Versions"}]

Document Information

Modified date:
08 July 2021