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Security Bulletin: IBM App Connect Enterprise and IBM Integration Bus for z/OS are vulnerable to a denial of service due to Eclipse Jetty (CVE-2024-22201)

Security Bulletin


IBM App Connect Enterprise Toolkit and IBM Integration Bus for z/OS Toolkit are vulnerable to a denial of service due to Eclipse Jetty. This bulletin identifies the steps to take to address the vulnerability.

Vulnerability Details

CVEID:   CVE-2024-22201
DESCRIPTION:   Eclipse Jetty is vulnerable to a denial of service, caused by a flaw when an HTTP/2 connection gets TCP congested. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause the server to stop accepting new connections from valid clients, and results in 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)
IBM App Connect Enterprise12.0.1.0 -
IBM App Connect Enterprise11.0.0.1 -
IBM Integration Bus for z/OS10.1 -


IBM strongly recommends addressing the vulnerability/vulnerabilities now by applying the appropriate fix to IBM App Connect Enterprise Toolkit and IBM Integration Bus for z/OS Toolkit

Affected Product(s)Version(s)APARRemediation / Fixes
IBM App Connect Enterprise12.0.1.0 -

The APAR (IT45942) is available from

IBM App Connect Enterprise v12 - Mod Release

IBM App Connect Enterprise11.0.0.1 -

The APAR (IT45942) is available from

IBM App Connect Enterprise v11 - Fix Pack Release

IBM Integration Bus for z/OS10.1 -

Interim Fix for APAR (IT45942) is available to apply to from

IBM Fix Central


Workarounds and Mitigations


Get Notified about Future Security Bulletins




Change History

01 May 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:
01 May 2024