Security Bulletin: IBM App Connect Enterprise Certified Container Operator and IntegrationServer operands may be vulnerable to denial of service due to CVE-2021-44716

Summary

IBM App Connect Enterprise Certified Container Operator and IntegrationServer operands may be vulnerable to denial of service. This bulletin provides patch information to address the reported vulnerability CVE-2021-44716.

Vulnerability Details

CVEID:CVE-2021-44716
**DESCRIPTION:**Golang Go is vulnerable to a denial of service, caused by an uncontrolled memory consumption in the header canonicalization cache in net/http. By sending HTTP/2 requests, a remote attacker could exploit this vulnerability to consume all available memory resources.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/216553 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 2.1, 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 IntegrationServer 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 1.1.9 or higher, and ensure that all IntegrationServer components are at 11.0.0.17-r2-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