Security Bulletin: IBM App Connect Enterprise Certified Container operands may be vulnerable to denial of service due to CVE-2022-25313

Summary

libexpat is not used directly by IBM App Connect Enterprise Certified Container but is present in the operand images as part of the base operating system. Use of libexpat within IBM App Connect Enterprise Certified Container operands may be vulnerable to denial of service. This bulletin provides patch information to address the reported vulnerability CVE-2022-25313 in libexpat.

Vulnerability Details

CVEID:CVE-2022-25313
**DESCRIPTION:**libexpat is vulnerable to a denial of service, caused by stack exhaustion in build_model. By persuading a victim to open a specially-crafted file, a remote attacker could exploit this vulnerability using a large nesting depth in the DTD element to cause a denial of service.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/219947 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)

Affected Products and Versions

Remediation/Fixes

App Connect Enterprise Certified Container 4.1, 4.2 and 5.0 (Continuous Delivery)

Upgrade to App Connect Enterprise Certified Container Operator version 5.1.0 or higher, and ensure that all components are at 12.0.5.0-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 5.0.1 or higher, and ensure that all components are at 12.0.6.0-r1-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