APAR status
Closed as program error.
Error description
TLS "bad length" error may occur on Datapower when using TLS v1.3 and session caching. example: 20231012T143743.858Z [apiconnect][0x8120002f][ssl][error] ssl-client(some-name): tid(85612279)[1.2.3.4] gtid(d0cd9361552804b7041b1f73): TLS library error: error:1409E10F:SSL routines:ssl3_write_bytes:bad length
Local fix
Disable TLS 1.3 and use TLS 1.2 or disable session caching
Problem summary
DataPower might encounter a bad length error from a TLS1.3 client using session caching.
Problem conclusion
Fix is available in 10.5.0.12. For a list of the latest fix packs available, please see: https://www.ibm.com/support/pages/node/83105
Temporary fix
Comments
APAR Information
APAR number
IT45793
Reported component name
DATAPOWER
Reported component ID
DP1234567
Reported release
A0X
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2024-03-22
Closed date
2024-06-21
Last modified date
2025-08-07
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
DATAPOWER
Fixed component ID
DP1234567
Applicable component levels
[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SS9H2Y","label":"IBM DataPower Gateways"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"A0X","Line of Business":{"code":"LOB77","label":"Automation Platform"}}]
Document Information
Modified date:
07 August 2025