APAR status
Closed as program error.
Error description
Data transfer limit restrictions may be applied when using 3DES or GCM CipherSpecsf the following CipherSpecs. If the limit is reached, the connection will be terminated, and an AMQ9288 error message will be recorded in the error log. During this expected condition, an unexpected Failure Data Capture (FDC) record with probe ID CO286005 is generated, with header information similar to the following: 1 +--------------------------------------------------------------- --------------+ 2 | | 3 | WebSphere MQ First Failure Symptom Report | 4 | ========================================= | 5 | | 14 | Vendor :- IBM | 15 | O/S Registered :- 1 | 19 | License Type :- Production | 20 | Probe Id :- CO286005 | 21 | Application Name :- MQM | 22 | Component :- cciSslReportGSKitError | 23 | SCCS Info :- /build/slot1/p800_P/src/lib/comms/amqccisa.c, | 44 | Major Errorcode :- rrcE_SSL_FIPS_BYTE_COUNT_EXCEEDED | 45 | Minor Errorcode :- OK | 46 | Probe Type :- MSGAMQ9288 | 47 | Probe Severity :- 2 | 48 | Probe Description :- AMQ9288: Secure data transfer limit for channel | 49 | 'TLS_RSA_WITH_3DES_EDE_CBC_SHA' exceeded. | 50 | FDCSequenceNumber :- 0 | 51 | Comment1 :- TLS_RSA_WITH_3DES_EDE_CBC_SHA | 52 | | 1 +--------------------------------------------------------------- --------------+ Additionally, the AMQ9288 message written to the error log does not set the correct data transfer limit, and instead reports a data transfer limit of '0' has been applied.
Local fix
Use an alternative CipherSpec that is not subject to a data transfer limit, or configure key reset to re-negotiate the connection before the limit is reached.
Problem summary
**************************************************************** USERS AFFECTED: This issue affects users who exceed the data transfer limit of the following MQ CipherSpecs which use 3DES or GCM: ECDHE_ECDSA_AES_128_GCM_SHA256 ECDHE_ECDSA_AES_256_GCM_SHA384 ECDHE_RSA_AES_128_GCM_SHA256 ECDHE_RSA_AES_256_GCM_SHA384 ECDHE_ECDSA_AES_256_GCM_SHA384 TLS_RSA_WITH_AES_128_GCM_SHA256 TLS_RSA_WITH_AES_256_GCM_SHA384 [ The above are subject to a transfer limit of 2ˆ22 TLS records ] TLS_RSA_WITH_3DES_EDE_CBC_SHA	 ECDHE_ECDSA_3DES_EDE_CBC_SHA256 ECDHE_RSA_3DES_EDE_CBC_SHA256 [ The above are subject to a transfer limit of 32GB ] Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: A coding error in the handling of the condition where the data transfer limit was reached for one of the above CipherSpec meant that an invalid comparison of CipherSpec values was performed. This invalid comparison resulted in the generation of the above FDC record to report an unexpected value, and meant that the correct data transfer limit was not reported in the AMQ9288 message.
Problem conclusion
The error in the handling of this condition has been addressed to avoid generation of the FDC record, and insert the correct limit value into the AMQ9288 message. This code change is applicable to queue managers and non-Java MQ clients (excluding managed .NET clients). --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v8.0 8.0.0.10 v9.0 LTS 9.0.0.4 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
IT24080
Reported component name
IBM MQ BASE MP
Reported component ID
5724H7251
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2018-02-15
Closed date
2018-02-28
Last modified date
2018-03-23
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 MQ BASE MP
Fixed component ID
5724H7251
Applicable component levels
[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.0.0.0","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
23 March 2018