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Security Bulletin: IBM MQ Appliance is affected by a denial of service vulnerability (CVE-2018-0732)

Security Bulletin


Summary

IBM MQ Appliance has addressed the following denial of service vulnerability.

Vulnerability Details

CVEID:  CVE-2018-0732
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by the sending of a very large prime value to the client by a malicious server during key agreement in a TLS handshake. By spending an unreasonably long period of time generating a key for this prime, a remote attacker could exploit this vulnerability to cause the client to hang.
CVSS Base Score: 3.7
CVSS Temporal Score: See  https://exchange.xforce.ibmcloud.com/vulnerabilities/144658  for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

Affected Products and Versions

IBM MQ Appliance 8.0
Maintenance levels between 8.0.0.0 and 8.0.0.10

IBM MQ Appliance 9.0.x Continuous Delivery (CD) Release
Continuous delivery updates 9.0.1 and 9.0.5


IBM MQ Appliance 9.1 Long Term Support (LTS) Release
Maintenance level 9.1.0.0

Remediation/Fixes

IBM MQ Appliance 8.0
Apply fixpack 8.0.0.11 or later.

IBM MQ Appliance 9.0.x Continuous Delivery (CD) Release
Apply 9.1.0.1 Long Term Support (LTS) Release , or 9.1.1 Continuous Delivery Release or later.


IBM MQ Appliance 9.1 Long Term Support (LTS) Release
Apply fixpack 9.1.0.1 or later.

Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Change History

20 Dec 2018 : Original version published

*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

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.

Internal Use Only

PSIRT A:12382 PR:116857

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Document Information

Modified date:
04 January 2019

UID

ibm10738785