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IT21848: LDAP PLUGIN NOW ALLOWS SIGNATURE ALGORITHMS TO BE SPECIFIED WHENUSING TLS 1.2

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APAR status

  • Closed as program error.

Error description

  • When using TLS 1.2, the client should provide a list of the
    signature algorithms that it supports, otherwise the Server
    assumes that only RSA+SHA1 are supported. This is a problem with
    some LDAP Servers (eg. Active Directory) because they require
    that all certificates be signed with SHA2 or better.
    
    This APAR adds the SSL_EXTN_SIGALG keyword to the
    IBMLDAPSecurity.ini. It can take the following values:
      GSK_TLS_SIGALG_RSA_WITH_SHA224
      GSK_TLS_SIGALG_RSA_WITH_SHA256
      GSK_TLS_SIGALG_RSA_WITH_SHA384
      GSK_TLS_SIGALG_RSA_WITH_SHA512
      GSK_TLS_SIGALG_ECDSA_WITH_SHA224
      GSK_TLS_SIGALG_ECDSA_WITH_SHA256
      GSK_TLS_SIGALG_ECDSA_WITH_SHA384
      GSK_TLS_SIGALG_ECDSA_WITH_SHA512
    Multiple algorithms can be specified, separated by commas.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * all platforms                                                *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * upgrade to db2_v111m1fp2                                     *
    ****************************************************************
    

Problem conclusion

  • forward merged to db2_v111m1fp2
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT21848

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    B10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-08-04

  • Closed date

    2017-10-09

  • Last modified date

    2017-10-09

  • APAR is sysrouted FROM one or more of the following:

    IT19627

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • RB10 PSN

       UP

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSEPGG","label":"DB2 for Linux, UNIX and Windows"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"11.1","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
09 October 2017