IJ50653: IBMJCEPLUS, IBMJCEPLUSFIPS PROVIDERS RETURN ERROR AND OR WRITE A MESSAGE WHEN WRITE OR READ EXCEEDS THE MEMORY ALLOCATED

APAR status

• Closed as program error.

Error description

• Error Message: N/A
  .
  Stack Trace: N/A
  .
  N/A
  

Local fix

Problem summary

• IBMJCEPlus, IBMJCEPlusFIPS providers return error and or write a
  message when write or read exceeds the memory allocated.
  When writes exceed memory allocated, the providers write an
  error message to stderr with the text: "Internal error: Possible
  write beyond allocated buffer."
  
  When reads exceed a memory allocated, the two providers write a
  warning message to stderr with the text:
  
  "Internal Memory Warning: Possible read beyond allocated
  buffer."
  

Problem conclusion

• The JVM has been updated to detect possible memory overwrite and
  read beyond allocated memory and write error and warning
  message, respectively.
  
  The affected files: ibmjceplus.jar and native libraries
  (libjgskit.so and jgskit.dll)
  
  GIT issues: 605
  
  RTC problem report: 150906
  
  The Java 8 ibmjceplus.jar build dates:
  
  FIPS140-2 - Build-Date: 20240312
  
  FIPS140-3 - Build-Date: 20230312
  
  The fixes were delivered for: Java 8.0 SR8 FP25
  Please contact IBM Support if stderr.log contains the following
  diagnostic message:
  "Internal error: Possible write beyond allocated buffer."
  
  .
  This APAR will be fixed in the following Releases:
  .
  IBM SDK, Java Technology Edition
     8    SR8 FP25  (8.0.8.25)
  .
  Downloads and supplementary documentation can be found at the
  following locations:
  - For non z/OS operating systems:
    - IBM Semeru Runtimes, Version 11 and later
      https://www.ibm.com/semeru-runtimes/downloads/
    - IBM SDK, Java Technology Edition, Version 8
      https://www.ibm.com/support/pages/java-sdk-downloads/
  - For the z/OS operating system:
    - Java SDK Products on z/OS
      https://www.ibm.com/support/pages/java-sdk-products-zos
  

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

  SECURITY

• Fixed component ID

  620700125

Applicable component levels