Security Bulletin: IBM App Connect Enterprise Certified Container IntegrationServer and IntegrationRuntime operands that use the MQ clients and CCDT files are vulnerable to denial of service due to [CVE-2023-38039]

Summary

Libcurl is used by the MQ Client code in IBM App Connect Enterprise Certified Container for downloading CCDT information. IBM App Connect Enterprise Certified Container IntegrationServer and IntegrationRuntime operands that use the MQ clients and CCDT files are vulnerable to denial of service. This bulletin provides patch information to address the reported vulnerability in libcurl. [CVE-2023-38039]

Vulnerability Details

CVEID:CVE-2023-38039
**DESCRIPTION:**cURL libcurl is vulnerable to a denial of service, caused by not limiting the number and size of headers accept in a response. By sending a specially crafted request, a remote attacker could exploit this vulnerability to run out of heap memory, and results in a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/265946 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

Remediation/Fixes

IBM strongly suggests the following:
App Connect Enterprise Certified Container 4.1.0 to 10.1.1 (Continuous Delivery)

Upgrade to App Connect Enterprise Certified Container Operator version 11.0.0 or higher, and ensure that all DesignerAuthoring, IntegrationServer and IntegrationRuntime components are at 12.0.10.0-r2 or higher. Documentation on the upgrade process is available at <https://www.ibm.com/docs/en/app-connect/containers_cd?topic=releases-upgrading-operator&gt;

App Connect Enterprise Certified Container 5.0 LTS (Long Term Support)

Upgrade to App Connect Enterprise Certified Container Operator version 5.0.13 or higher, and ensure that all DesignerAuthoring and IntegrationServer components are at 12.0.10.0-r2-lts or higher. Documentation on the upgrade process is available at <https://www.ibm.com/docs/en/app-connect-contlts?topic=releases-upgrading-operator&gt;

Workarounds and Mitigations

None