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Security Bulletin: Denial of service vulnerability affects IBM Business Automation Workflow Event Emitters - CVE-2023-43642

Security Bulletin


IBM Business Automation Workflow Event Emitters package a copy of snappy with a known vulnerability.

Vulnerability Details

CVEID:   CVE-2023-43642
DESCRIPTION:   snappy-java is vulnerable to a denial of service, caused by missing upper bound check on chunk length. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions


Affected Product(s)Version(s)Status
IBM Business Automation Workflow containers

V23.0.1 all fixes
V22.0.2 all fixes
V22.0.1 all fixes
V21.0.3 - V21.0.3-IF028
V21.0.2 all fixes
V20.0.0.2 all fixes
V20.0.0.1 all fixes

IBM Business Automation Workflow traditionalV23.0.1 - V23.0.2
V22.0.1 - V22.0.2
V21.0.1 - V21.0.3.1
V20.0.0.1 - V20.0.0.2
V19.0.0.1 - V19.0.0.3

For earlier and unsupported versions of the products, IBM recommends upgrading to a fixed, supported version of the product.


The recommended solution is to apply the Interim Fix (iFix) or Cumulative Fix (CF) containing APAR DT258608 and DT258777 as soon as practical.


Affected Product(s)Version(s)Remediation / Fix
IBM Business Automation Workflow containersV23.0.2Apply 23.0.2-IF001
IBM Business Automation Workflow containersV21.0.3Apply 21.0.3-IF029 
or upgrade to 23.0.2-IF001 or later
IBM Business Automation Workflow containersV23.0.1
V22.0.1 - V22.0.2
V21.0.1 - V21.0.2
V20.0.0.1 - V20.0.0.2
Upgrade to 21.0.3-IF029 
or upgrade to 23.0.2-IF001 or later
IBM Business Automation Workflow traditionalV23.0.2Apply DT258608 and DT258777
IBM Business Automation Workflow traditionalV21.0.3.1Apply DT258608 (DT258777 is not required)
IBM Business Automation Workflow traditional

V22.0.1 - V22.0.2
V21.0.1 - V21.0.3.0
V20.0.0.1 - V20.0.0.2
V19.0.0.1 - V19.0.0.3
V18.0.0.1 - V18.0.0.3

Upgrade to a long term support release or the latest SSCD version. See IBM Business Automation Workflow and IBM Integration Designer Software Support Lifecycle Addendum


Workarounds and Mitigations


Get Notified about Future Security Bulletins




Change History

02 Feb 2024: Initial Publication

*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.


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. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

Document Location


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Document Information

Modified date:
02 February 2024