PH67529: USING CGI-LIKE SCRIPTS WITH IHS THAT DO XML PROCESSING MAY REPORT ERRORS.

APAR status

• Closed as program error.

Error description

• An example from perl:
  
  (null) at line 1, column 0, byte -1 at
  /usr/lib64/perl5/vendor_perl/XML/Parser.pm line 187.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM HTTP Server that run       *
  *                  perl/python or similar scripts under IHS    *
  *                  via                                         *
  *                  CGI, SSI, etc.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: After 9.0.5.24, some CGI and similar    *
  *                      scripts that depend on libexpat         *
  *                      may return XML parsing errors.          *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The LD_LIBRARY_PATH/LIBPATH variables set by default for IHS to
  find bundled libraries are inherited by default by any
  executable launched by IHS at runtime.
  The bundled libraries however are not necessarily safe for use
  outside of IHS, they are only provided for use by IHS in limited
  ways.
  n/a to 8.5, these variables are not implicitly copied to new
  processes.
  

Problem conclusion

• The code responsible for copying environment variables from
  various sources has been modified to allow the use of
  SetEnv/SetEnvIf to override the value of variables such as
  LIBPATH (AIX) and LD_LIBRARY_PATH (Linux) which was previously
  not possible.
  
  Note that unfortunately these native environment variables still
  cannot be "UnSetEnv" of "SetEnvIf ... !var-name", only replaced
  with new values.
  
  This approach was taken rather than removing LD_LIBRARY_PATH as
  the use of perl/python interpreters from within IHS or IHS CGI
  is believed to be rare.
  
  The fix for this APAR is targeted for inclusion in IBM HTTP
  Server fix packs 9.0.5.25. For more information, see
  'Recommended Updates for WebSphere Application Server':
  https://www.ibm.com/support/pages/node/715553
  

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:

Fix information

• Fixed component name

  IBM HTTP SERVER

• Fixed component ID

  5724J0801

Applicable component levels