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Security Bulletin: Potential denial of service vulnerability in the Apache CXF library used in WebSphere Application Server Liberty Core affect CICS Transaction Gateway

Security Bulletin


Summary

Denial of service 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-2019-4720
DESCRIPTION:   IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 is vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume all available memory. IBM X-Force ID: 172125.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/172125 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

Affected Product(s)Version(s)
CICS Transaction Gatewayv9.1.0.0 - 9.1.0.3
CICS Transaction GatewayV9.2.0.0 - 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

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

28 Apr 2020: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGMJ2","label":"CICS Transaction Gateway"},"Component":"CICS Transaction Gateway-\u0026gt;Configuration-\u0026gt;Distributed platform","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"},{"code":"PF010","label":"HP-UX"}],"Version":"9.1.0, 9.2.0","Edition":"","Line of Business":{"code":"LOB35","label":"Mainframe SW"}}]

Document Information

Modified date:
09 December 2021

Initial Publish date:
28 April 2020

UID

ibm16202462

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