IBM Support

PH42072: POSSIBLE CRASH IN SET_PARENT_CHILD_POINTERS DURING LDAP AUTHENTICATION

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APAR status

  • Closed as program error.

Error description

  • IHS may crash with the following
set_parent_child_pointers<chase_v3_referrals in the stack during
LDAP authentication or authorization

Local fix

  • 



Problem summary


    

  • ****************************************************************
* USERS AFFECTED:  All users of IBM HTTP Server with LDAP      *
*                  authentication configured                   *
****************************************************************
* PROBLEM DESCRIPTION: IHS may crash during LDAP               *
*                      authenticationwith the following        *
*                      partial backtrace:                      *
*                      set_parent_child_pointers               *
*                      chase_v3_referrals                      *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
The LDAP SDK embedded in IHS has a defect where while chasing
referrals, if the server in the referral is down a crash will
occur.
See APAR IO26375:
https://www.ibm.com/support/pages/apar/IO26375

    



Problem conclusion


    

  • The ISDS LDAP SDK embedded in IHS was updated from 6.4.0.6 to
6.4.0.24 with the following exceptions:

- Windows on 8.5.5 cannot be updated. If experiencing this
problem on Windows on 8.5.5, upgrade to 9.0.
- HP-UX, all releases. Current versions of the LDAP
SDK no longer support HP-UX. If experiencing this problem,
IHS must be run on another operating system.

The fix for this APAR is targeted for inclusion in IBM HTTP
Server fix packs 8.5.5.21 and 9.0.5.11. For more information,
see 'Recommended Updates for WebSphere Application Server':
https://www.ibm.com/support/pages/node/715553

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PH42072
    • 

  • Reported component name
    IBM HTTP SERVER
    • 

  • Reported component ID
    5724J0801
    • 

  • Reported release
    850
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2021-11-15
    • 

  • Closed date
    2021-11-18
    • 

  • Last modified date
    2021-11-22
    • 





    

  • 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


    








      
              
                            

              

              [{"Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEQTJ","label":"IBM HTTP Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.5"}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            23 November 2021
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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