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Security Bulletin: IBM Watson IoT MessageGateway Server is affected by a buffer overflow vulnerability (CVE-2020-4207)

Security Bulletin


IBM Watson IoT MessageGateway Server is vulnerable to a buffer overflow isse that can result in denial of service and possible code execution.

Vulnerability Details

CVEID:   CVE-2020-4207
DESCRIPTION:   IBM Watson IoT Message Gateway is vulnerable to a buffer overflow, caused by improper bounds checking when handling a failed HTTP request with specific content in the headers. By sending a specially crafted HTTP request, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause a denial of service.
CVSS Base score: 9.8
CVSS Temporal Score: See: for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions


Affected Product(s)Version(s)
IBM WIoTP MessageGateway5.0.0.1
IBM IoT MessageSight5.0.0.0
IBM IoT MessageSight2.0




VRMFAPARRemediation/First Fix
IBM WIoTP MessageGateway
IBM MessageSight
IBM MessageSight



Workarounds and Mitigations


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The vulnerability was reported to IBM by Armis

Change History

23 Jan 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.


According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.

Document Location


[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSF79B","label":"IBM Watson IoT Platform - Message Gateway"},"Component":"","Platform":[{"code":"PF016","label":"Linux"}],"Version":"2.0.0.x,,,","Edition":"","Line of Business":{"code":"LOB02","label":"AI Applications"}}]

Document Information

Modified date:
24 January 2020