PH01302: ACCEPT SHA2 CERT CHAINS IN LDAP CONNECTIONS

9.0.0.10: WebSphere Application Server traditional V9.0 Fix Pack 10
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
9.0.0.11: WebSphere Application Server traditional V9.0 Fix Pack 11
9.0.5.0: WebSphere Application Server traditional Version 9.0.5 Refresh Pack
9.0.5.1: WebSphere Application Server traditional Version 9.0.5 Fix Pack 1
9.0.5.2: WebSphere Application Server traditional Version 9.0.5 Fix Pack 2
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
9.0.5.3: WebSphere Application Server traditional Version 9.0.5 Fix Pack 3
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21

APAR status

• Closed as program error.

Error description

• accept SHA2 cert chains in LDAP connections
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  Users of IBM HTTP Server making LDAP        *
  *                  connections                                 *
  ****************************************************************
  * PROBLEM DESCRIPTION: TLS 1.2 LDAP connection failures due    *
  *                      to certificate signature algorithm      *
  *                      problems.                               *
  ****************************************************************
  * RECOMMENDATION:  Apply this fix                              *
  ****************************************************************
  Accept SHA2 cert chains for ldaps:// connections over TLS 1.2
  by sending the signature_algorithms extension.
  

Problem conclusion

• TLS signature algorithms are now set so SHA2 cert chains are
  accepted for LDAP connections
  
  This fix is targeted for IBM HTTP Server fix packs:
  - 8.5.5.15
  - 9.0.0.10
  

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

• R850 PSY

     UP

• R900 PSY

     UP