PH11233: AN EXEC CICS WEB EXTRACT COMMAND RESULTS IN CICS RESPONSE CODE LENGERR; ABEND AEIV; DFHWBERX OFFSET X'348C'

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• CICS receives an HTTP GET request with a querystring exceeding
  256 bytes.  The TCPIPSERVICE specifies URM(DFHWBAAX) and none
  of the installed URIMAPs match the incoming request.  This
  causes DFHWBERX to be invoked to send back an error response to
  the client.
  
  DFHWBERX issues an EXEC CICS WEB EXTRACT command to obtain the
  QUERYSTRING.  DFHWBERX only supplies a 256 byte buffer so the
  command returns a LENGERR.  DFHWBERX does not handle the LENGERR
  so gets abended AEIV.
  
  Additional Symptom(s) Search Keyword(s): KIXREVACC
  RESP=22 RESP2=8
  

Local fix

• Use querystrings of 256 bytes or less
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Abend AEIV in DFHWBERX if CICS receives *
  *                      an HTTP GET request with a querystring  *
  *                      exceeding 256 bytes and none of the     *
  *                      installed URIMAPs match it.             *
  ****************************************************************
  CICS receives an HTTP GET request with a querystring exceeding
  256 bytes.  The TCPIPSERVICE specifies URM(DFHWBAAX) and none
  of the installed URIMAPs match the incoming request.  This
  causes DFHWBERX to be invoked to send back an error response to
  the client. DFHWBERX issues an EXEC CICS WEB EXTRACT command to
  obtain the QUERYSTRING.  DFHWBERX only supplies a 256 byte
  buffer so the command returns a LENGERR.  DFHWBERX does not
  handle the LENGERR so gets abended AEIV.
  

Problem conclusion

• DFHWBERX has been changed to make sure ABEND AEIV will not
  happen if querystring exceeds 256 bytes, Response 404 will be
  sent back with a maximum querystring length of 256 bytes.
  

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:

  UI64019 UI64020 UI64021

Modules/Macros

• DFHWBERX
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R000 PSY UI64020

     UP19/07/03 P F907

• R100 PSY UI64019

     UP19/07/03 P F907

• R200 PSY UI64021

     UP19/07/03 P F907

Fix is available

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