PH71064: CICS OVERWRITES RSA DURING PARSE OF JSON WITH INVALID SCIENTIFIC NOTATION

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• During a TRANSFORM JSONTODATA command, CICS may overlay a
  register save area in its kernel stack when we are passed a
  number in invalid scientific notation. For example, a number
  specified like:
  
  "aNumber": "1.23456E"
  
  
  When there is no decimal exponent after the exponent character,
  CICS does not recognize this and will accidentally move x'100'
  bytes which causes an overlay of the register save area. When
  exiting this process, an 0C4 occurs in module DFHPIJP1 due to
  usage of the overlaid registers.
  
  
  
  Additional keywords: DFHPI0001 PI0001 0C4 DFHPIJP1
  CONVERSION_ERROR KIXRJLREV
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: During TRANSFORM JSONTODATA, invalid    *
  *                      scientific notation values lead to a    *
  *                      storage overlay and 0C4 in module       *
  *                      DFHPIJP1.                               *
  ****************************************************************
  When the TRANSFORM JSONTODATA command is used to transform a
  value with incorrect scientific notation that has no value after
  the exponent such as "1.23456E", "1.23456E-", or "1.23456E+",
  CICS does not handle this correctly and attempts to process the
  value. This results in an overlay of the register save area
  which then causes the following errors:
  
  DFHPI1007 <DATE> <TIME> <APPLID> <TRANID> <TRANNUM> JSON to data
  transformation failed because of incorrect input
  (UNEXPECTED_CONTENT) for JSONTRANSFRM <FIELDNAME>.
  
  DFHPI0001 <APPLID> An abend (code 0C4/AKEA) has occurred at
  offset X'0000B424' in module DFHPIJP1.
  
  This problem could also occur when calling a JSON web service.
  

Problem conclusion

• CICS has been updated to handle invalid scientific notation
  values gracefully by issuing message DFHPI1009.
  

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:

  UO08183 UO08184

Modules/Macros

• DFHECEI  DFHEPAS  DFHPICC  DFHPIII  DFHPIJG  DFHPIJP1 DFHPITS
  

Fix information

• Fixed component name

  CICS TS Z/OS V6

• Fixed component ID

  5655YA100

Applicable component levels

• R500 PSY UO08184

     UP26/06/12 P F606

• R600 PSY UO08183

     UP26/06/12 P F606

Fix is available

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