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Security Bulletin: Denial of service vulnerability in IBM Business Automation Workflow (CVE-2018-1997)

Security Bulletin


Summary

A denial of service vulnerability has been found in IBM Business Automation Workflow.

Vulnerability Details

CVEID:  CVE-2018-1997
DESCRIPTION: IBM Business Automation Workflow and Business Process Manager are vulnerable to a denial of service attack. An authenticated attacker might send a specially crafted request that exhausts server-side memory.
CVSS Base Score: 4.3
CVSS Temporal Score: See  https://exchange.xforce.ibmcloud.com/vulnerabilities/154774  for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

- IBM Business Automation Workflow V18.0.0.0 through V18.0.0.2

- IBM Business Process Manager V8.6.0.0 through V8.6.0.0 Cumulative Fix 2018.03 

- IBM Business Process Manager Advanced V8.5.7.0 through V8.5.7.0 Cumulative Fix 2017.06

- IBM Business Process Manager Advanced V8.5.6.0 through V8.5.6.0 Cumulative Fix 2

-IBM Business Process Manager Advanced V8.5.5.0

Remediation/Fixes

The recommended solution is to apply the Interim Fix (iFix) or Cumulative Fix (CF) containing APAR  JR60499   as soon as practical:


For IBM Business Automation Workflow V18.0.0.0 through V18.0.0.2
· Upgrade to minimal cumulative fix levels as required by iFix and then apply iFix  JR60499
Note that Business Automation Workflow 18.0.0.0 is a software bundle that includes IBM Business Process Manager V8.6.0.0 CF 2018.03. To download the fix for IBM Business Automation Workflow 18.0.0.0, download the fix labeled "8.6.0.201803-WS-BPM-IFJR60499".  
--OR--
· Apply cumulative fix Business Automation Workflow V19.0.0.1 

For IBM Business Process Manager V8.6.0.0 through V8.6.0.0 CF 2018.03
· Upgrade to minimal cumulative fix levels as required by iFix and then apply iFix  JR60499
Note that Business Automation Workflow 18.0.0.0 is a software bundle that includes IBM Business Process Manager V8.6.0.0 CF 2018.03. To download the fix for IBM Business Process Manager V8.6.0.0 CF 2018.03, download the fix labeled "8.6.0.201803-WS-BPM-IFJR60499".
--OR--
· Upgrade to Business Automation Workflow V19.0.0.1 

For IBM BPM V8.5.7.0 through V8.5.7.0 CF 2017.06
· Apply  Cumulative Fix 2017.06 and then apply iFix  JR60499
--OR--
· Upgrade to Business Automation Workflow V19.0.0.1 

For IBM BPM V8.5.6.0 through V8.5.6.0 CF 2
· Apply  CF2  and then apply iFix  JR60499
--OR--
· Upgrade to Business Automation Workflow V19.0.0.1

For IBM BPM V8.5.5.
· Apply iFix  JR60499
--OR--
· Upgrade to Business Automation Workflow V19.0.0.1

Workarounds and Mitigations

None

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Important Note

IBM strongly suggests that all System z customers be subscribed to the System z Security Portal to receive the latest critical System z security and integrity service. If you are not subscribed, see the instructions on the System z Security web site. Security and integrity APARs and associated fixes will be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential risk.

Reference

Complete CVSS v3 Guide
On-line Calculator v3

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

4 April 2019: initial version published

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.


Cross reference information
Product Component Platform Version Edition
IBM Business Process Manager AIX, Linux, Windows 8.6.0.CF201803, 8.6.0.CF201712, 8.6
IBM Business Process Manager Advanced AIX, Linux, Solaris, Windows, z/OS 8.5.7.CF201706, 8.5.7.CF201703, 8.5.7.CF201612, 8.5.7.CF201609, 8.5.7.CF201606, 8.5.7, 8.5.6.2, 8.5.6.1, 8.5.6, 8.5.5
IBM Business Process Manager Standard AIX, Linux, Solaris, Windows 8.5.7.CF201706, 8.5.7.CF201703, 8.5.7.CF201612, 8.5.7.CF201609, 8.5.7.CF201606, 8.5.7, 8.5.6.2, 8.5.6.1, 8.5.6, 8.5.5
IBM Business Process Manager Express Linux, Windows 8.6.0.CF201803, 8.6.0.CF201712, 8.6, 8.5.7.CF201706, 8.5.7.CF201703, 8.5.7.CF201612, 8.5.7.CF201609, 8.5.7.CF201606, 8.5.7, 8.5.6.2, 8.5.6.1, 8.5.6, 8.5.5

Document information

More support for: IBM Business Automation Workflow

Software version: 18.0.0.0, 18.0.0.1, 18.0.0.2

Operating system(s): AIX, Linux, Windows

Reference #: 0794831

Modified date: 04 April 2019