An issue was found within the data conversion logic that could cause a SIGSEGV and denial of service within an MQ channel process.
DESCRIPTION: IBM MQ and MQ Appliance is vulnerable to a denial of service attack due to an error within the Data Conversion logic.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/177081 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
Affected Products and Versions
|IBM MQ||9.1 LTS|
|IBM MQ||9.0 LTS|
|IBM MQ||9.1 CD|
|IBM WebSphere MQ||7.1|
|IBM WebSphere MQ||7.5|
Workarounds and Mitigations
Get Notified about Future Security Bulletins
20 June 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.
24 September 2020