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AUSCERT External Security Bulletin Redistribution
ESB-2019.1016
IBM Security Bulletin: IBM MQ Appliance is affected by
OpenSSL vulnerabilities (CVE-2018-0732 and CVE-2018-0739)
27 March 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM MQ Appliance
Publisher: IBM
Operating System: Network Appliance
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-0739 CVE-2018-0732
Reference: ASB-2019.0060
ASB-2019.0031
ASB-2019.0030
ASB-2019.0026
ESB-2019.0835
ESB-2019.0832
ESB-2019.0831
ESB-2019.0830
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=ibm10792537
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IBM MQ Appliance is affected by OpenSSL vulnerabilities (CVE-2018-0732 and
CVE-2018-0739)
Product: IBM MQ Appliance
Software version: 9.1.0.0, 9.1.0.1, 9.1.1
Operating system(s): Appliance
Reference #: 0792537
Security Bulletin
Summary
IBM MQ Appliance has addressed the following OpenSSL vulnerabilities.
Vulnerability Details
CVEID: CVE-2018-0732
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by sending 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)
CVEID: CVE-2018-0739
DESCRIPTION: OpenSSL is vulnerable to a denial of service. By sending specially
crafted ASN.1 data with a recursive definition, a remote attacker could exploit
this vulnerability to consume excessive stack memory.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
140847 for the current score
CVSS Environmental Score*: Undefined
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
IBM MQ Appliance 9.1 Long Term Support (LTS) Release
Maintenance levels between 9.1.0.0 and 9.1.0.1
IBM MQ Appliance 9.1.x Continuous Delivery (CD) Release
Continuous delivery updates 9.1.1
Remediation/Fixes
IBM MQ Appliance 9.1 Long Term Support (LTS) Release
Apply iFix IT27359 , or later.
IBM MQ Appliance 9.1.x Continuous Delivery (CD) Release
Apply iFix IT27359 , or later.
Workarounds and Mitigations
None
Reference
Complete CVSS v3 Guide
On-line Calculator v3
Related Information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Change History
14 Feb 2019 : 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.
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