Security Bulletin: IBM App Connect Enterprise Certified Container operands may be vulnerable to denial of service due to CVE-2018-25032

Summary

Zlib is part of the base OS modules in all operand images in IBM App Connect Enterprise Certified Container. IBM App Connect Enterprise Certified Container is not directly vulnerable under standard operations, but custom use of the images may be vulnerable to denial of service. This bulletin provides patch information to address the reported vulnerability CVE-2018-25032.

Vulnerability Details

CVEID:CVE-2018-25032
**DESCRIPTION:**Zlib is vulnerable to a denial of service, caused by a memory corruption in the deflate operation. By using many distant matches, a remote attacker could exploit this vulnerability to cause the application to crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/222615 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

App Connect Enterprise Certified Container 3.0, 3.1, 4.0 and 4.1 (Continuous Delivery)

Upgrade to App Connect Enterprise Certified Container Operator version 4.2.0 or higher, and ensure that all components are at 12.0.4.0-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 1.1 EUS (Extended Update Support)

Upgrade to App Connect Enterprise Certified Container Operator version 1.1.10 or higher, and ensure that all components are at 11.0.0.18-r1-eus or higher. Documentation on the upgrade process is available at <https://www.ibm.com/docs/en/app-connect/containers_eus?topic=releases-upgrading-operator&gt;

Workarounds and Mitigations

None