Security Bulletin: Vulnerability in the Apache CXF library used in WebSphere Application Server Liberty Core affect CICS Transaction Gateway

Summary

Vulnerability in the Apache CXF library used in WebSphere Application Server Liberty Core affect CICS Transaction Gateway Web Service requests. CICS Transaction Gateway addressed the applicable CVEs.

Vulnerability Details

CVEID:CVE-2019-12406
**DESCRIPTION:**Apache CXF is vulnerable to a denial of service, caused by the failure to restrict the number of message attachments present in a given message. By sending a specially-crafted message containing an overly large number of message attachments, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/170974 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

CICS Transaction Gateway v9.1.0.0 – 9.1.0.3
CICS Transaction Gateway v9.2.0.0 – 9.2.0.2

Remediation/Fixes

Upgrade the WebSphere Application Server Liberty Core used by CICS TG Gateway daemon. Updated WebSphere Application Server Liberty Core files used by Gateway daemon are made available on Fix Central.

Workarounds and Mitigations

None