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AUSCERT External Security Bulletin Redistribution
ESB-2017.0655
Security Bulletin: Vulnerabilities in OpenSSL affect IBM WebSphere MQ
Advanced Message Security (CVE-2016-2177, CVE-2016-2178)
14 March 2017
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AusCERT Security Bulletin Summary
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Product: IBM WebSphere MQ
Publisher: IBM
Operating System: IBM i
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2016-2178 CVE-2016-2177
Reference: ASB-2017.0005
ASB-2017.0001
ASB-2016.0120
ESB-2016.2239.2
ESB-2016.2238
ESB-2016.2116
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg21999724
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Security Bulletin: Vulnerabilities in OpenSSL affect IBM WebSphere MQ
Advanced Message Security (CVE-2016-2177, CVE-2016-2178)
Document information
More support for: WebSphere MQ
WMQ Advanced Message Security
Software version: 8.0
Operating system(s): IBM i
Software edition: All Editions
Reference #: 1999724
Modified date: 13 March 2017
Security Bulletin
Summary
OpenSSL vulnerabilities were disclosed on September 22 and 26, 2016 by
the OpenSSL Project. OpenSSL is used by IBM WebSphere MQ Advanced Message
Security on the IBM i platform only. IBM WebSphere MQ Advanced Message
Security has addressed the applicable CVEs.
Vulnerability Details
CVEID: CVE-2016-2177
DESCRIPTION: OpenSSL is vulnerable to a denial of service, caused by the
incorrect use of pointer arithmetic for heap-buffer boundary checks. By
leveraging unexpected malloc behavior, a remote attacker could exploit
this vulnerability to trigger an integer overflow and cause the application
to crash.
CVSS Base Score: 5.9
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/113890 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:H)
CVEID: CVE-2016-2178
DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive
information, caused by an error in the DSA implementation that allows
the following of a non-constant time codepath for certain operations. An
attacker could exploit this vulnerability using a cache-timing attack to
recover the private DSA key.
CVSS Base Score: 5.3
CVSS Temporal Score: See
https://exchange.xforce.ibmcloud.com/vulnerabilities/113889 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
Affected Products and Versions
IBM WebSphere MQ V8
Maintenance versions 8.0.0.0 through 8.0.0.5 are affected.
Remediation/Fixes
IBM WebSphere MQ V8
Apply fixpack 8.0.0.6
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alerts like this.
References
Complete CVSS v3 Guide
On-line Calculator v3
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Change History
13 March 2017: 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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