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AUSCERT External Security Bulletin Redistribution
Security Bulletin: IBM WebSphere MQ is affected by a
vulnerability in GSKit (CVE-2014-0076)
5 November 2014
AusCERT Security Bulletin Summary
Product: IBM WebSphere MQ
Operating System: AIX
Impact/Access: Access Privileged Data -- Existing Account
CVE Names: CVE-2014-0076
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Security Bulletin: IBM WebSphere MQ is affected by a vulnerability in GSKit
More support for:
7.0.1, 7.1, 7.5, 8.0
AIX, HP Itanium, HP-UX, Linux, Linux Red Hat - i/p Series, Linux Red Hat -
xSeries, Linux Red Hat - zSeries, Linux SUSE - xSeries, Linux SUSE - zSeries,
Linux SuSE - i/p Series, Linux on Power, Linux zSeries, Solaris, Windows
A vulnerability in GSKit, which is included in IBM WebSphere MQ, can
potentially allow key information about certain kinds of binary type Elliptic
Curves used in Digital signatures during signing operations.
DESCRIPTION: An attacker running a program on the same machine as where the
victim is running a program could use CPU timing information to discover key
information about certain kinds of binary type Elliptic Curves used in Digital
signatures during signing operations. Although GSKit only generates Prime type
Elliptic Curves, externally generated keys may be imported in GSKit.
- From WebSphere MQ version 7.1, GSKit version 8.0 is integrated with WebSphere
MQ. For WebSphere MQ 7.0.1, GSKit version 7 or version 8 was installed
CVSS Base Score: 2.1
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/91990
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:L/AC:L/Au:N/C:P/I:N/A:N)
Affected Products and Versions
IBM WebSphere MQ 8.0, including all maintenance levels.
IBM WebSphere MQ 7.5, including all maintenance levels.
IBM WebSphere MQ 7.1, including all maintenance levels.
IBM WebSphere MQ 7.0.1, maintenance levels from 188.8.131.52 onwards, using GSKit
IBM strongly recommends that Elliptic Curve CipherSpecs are not used. These
CipherSpecs have names starting with 'EC'.
A summary of MQ CipherSpecs and protocols can be found in the IBM Knowledge
Center Specifying CipherSpecs topic.
Complete CVSS Guide
On-line Calculator V2
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
03 November 2014: Original Copy 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.
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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