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AUSCERT External Security Bulletin Redistribution
ESB-2016.0537
Security Bulletin: WebSphere Message Broker and IBM Integration Bus are
affected by denial of service vulnerability (CVE-2014-8901)
1 March 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Integration Bus
Publisher: IBM
Operating System: AIX
HP-UX
Linux variants
Solaris
Windows
Impact/Access: Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2014-8901
Reference: ESB-2015.0570
ESB-2015.0067
ESB-2014.2430
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=swg21697458
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Security Bulletin: WebSphere Message Broker and IBM Integration Bus are
affected by denial of service vulnerability (CVE-2014-8901)
Document information
More support for:
IBM Integration Bus
Software version:
9.0, 10.0
Operating system(s):
AIX, HP-UX, Linux, Solaris, Windows
Reference #:
1697458
Modified date:
2016-02-29
Security Bulletin
Summary
WebSphere Message Broker and IBM Integration Bus are affected by denial of
service vulnerability. Pattern matching while validating a specially crafted
XML document causes XML4C to consume 100% CPU
Vulnerability Details
CVEID: CVE-2014-8901
DESCRIPTION: IBM XML4J and XML4C libraries contain a denial of service
vulnerability when loading specially crafted content. This causes the CPU to
consume 100% of available resources and creates serious performance
degradation to the system.
CVSS Base Score: 4
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/99110 for the
current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:L/Au:S/C:N/I:N/A:P)
Affected Products and Versions
WebSphere Message Broker V8
IBM Integration Bus V9 and V10
Remediation/Fixes
Product VRMF APAR Remediation/Fix
IBM Integration Bus V10 IT07064 An interim fix is available from IBM Fix
Central for all platforms.
http://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/Integration+Bus&release=All&platform=All&function=aparId&apars=IT07064
The APAR is targeted to be available in fix pack 10.0.0.4
IBM Integration Bus V9 IT07064 An interim fix is available from IBM Fix
Central for all platforms.
http://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/Integration+Bus&release=All&platform=All&function=aparId&apars=IT07064
The APAR is targeted to be available in fix pack 9.0.0.6
WebSphere Message
Broker V8 IT07064 An interim fix is available from IBM Fix Central for all platforms.
http://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/WebSphere+Message+Broker&release=All&platform=All&function=aparId&apars=IT07064
The APAR is targeted to be available in fix pack 8.0.0.7
To mitigate the vulnerability, after an interim fix or fixpack containing
IT07064 is applied you must set the following environment variable to disable
the use of regular expressions by the MRM parser before starting the broker or
integration node:
MQSI_DISABLE_REGEX_IN_XML4C=yes
For unsupported versions of the product IBM recommends upgrading to a fixed,
supported version/release/platform of the product.
The planned maintenance release dates for WebSphere Message Broker and IBM
Integration Bus are available at :
http://www.ibm.com/support/docview.wss?uid=swg27006308
Workarounds and Mitigations
None known
Get Notified about Future Security Bulletins
Subscribe to My Notifications to be notified of important product support
alerts like this.
Important note
IBM strongly suggests that all System z customers be subscribed to the System
z Security Portal to receive the latest critical System z security and
integrity service. If you are not subscribed, see the instructions on the
System z Security web site. Security and integrity APARs and associated fixes
will be posted to this portal. IBM suggests reviewing the CVSS scores and
applying all security or integrity fixes as soon as possible to minimize any
potential risk.
References
Complete CVSS v2 Guide
On-line Calculator v2
Related information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Acknowledgement
None
Change History
29-February-2016 - 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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