IBM Support

JR62338: SECURITY APAR CVE-2017-18640 - VULNERABILITY IN SNAKEYAML LIBRARY MIGHT AFFECT IBM BUSINESS AUTOMATION WORKFLOW

Direct links to fixes

8.6.10019003-WS-BPM-IFJR62338
8.6.10019002-WS-BPM-IFJR62338
8.6.0.201803-WS-BPM-IFJR62338
workflow.20001.delta.repository

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • CVEID:   CVE-2017-18640
DESCRIPTION:   SnakeYAML is vulnerable to a denial of service,
caused by an entity expansion in Alias feature during a load
operation. By sending a specially crafted request, a remote
attacker could exploit this vulnerability to cause the
application to crash.
CVSS Base score: 5.3
CVSS Temporal Score: See:
https://exchange.xforce.ibmcloud.com/vulnerabilities/174331 for
the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

...


PRODUCTS AFFECTED
IBM Business Process Manager (BPM) Advanced
IBM BPM Standard
IBM BPM Express
IBM Business Process Manager (BPM)
IBM Business Automation Workflow

Local fix

  • N/A

Problem summary

  • No additional information is available.

Problem conclusion

  • A fix is available or will be available that updates the
SnakeYAML library to a version where CVE-2017-18640 is fixed.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    JR62338
    • 

  • Reported component name
    BUS AUTO WORKFL
    • 

  • Reported component ID
    5737H4100
    • 

  • Reported release
    J00
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2020-05-26
    • 

  • Closed date
    2020-08-18
    • 

  • Last modified date
    2025-07-13
    • 





    

  • 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
    BUS AUTO WORKFL
    • 

  • Fixed component ID
    5737H4100
    • 



Applicable component levels


    








      
              
                            

              

              [{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SS8JB4","label":"IBM Business Automation Workflow"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"19.0.0.1","Line of Business":{"code":"LOB76","label":"Data Platform"}}]
              

                                                                    

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            14 July 2025
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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