IBM WebSphere Message Broker and IBM Integration Bus Security Vulnerability: XML4J denial of service attack (CVE-2013-4002)

Flash (Alert)


Abstract

The XML4J parser is vulnerable to a denial of service attack, triggered by malformed XML data

Content

VULNERABILITY DETAILS:



DESCRIPTION:
The XML4J parser shipped with the IBM SDK is vulnerable to a denial of service attack, triggered by malformed XML data. The malformed data causes the XML parser to consume CPU resource for several minutes before the data is eventually rejected.

CVEID: CVE-2013-4002
CVSS Base Score: 7.1
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/85260 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:C)


AFFECTED PRODUCTS AND VERSIONS:
IBM WebSphere Message Broker V6.1.0.11 with Rules and Formatter Extension
IBM WebSphere Message Broker V6.1.0.11
IBM WebSphere Message Broker V7.0,0.6
IBM WebSphere Message Broker V8.0.0.2
IBM Integration Bus V9.0.0.0

REMEDIATION:

For IBM WebSphere Message Broker V6.1, V7.0 & V8.0 an interim fix for APAR IC94219 is available from IBM Fix Central:

http://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/WebSphere+Message+Broker&release=All&platform=All&function=aparId&apars=IC94219

APAR IC94219 is targeted for availability in IBM WebSphere Message Broker V6.1.0.12, V7.0.0.7 & V8.0.0.3 respectively

For IBM WebSphere Message Broker V6.1 with Rules and Formatter Extension please apply the IBM WebSphere Message Broker V6.1 interim fix for APAR IC94219 which is available from IBM Fix Central:

http://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/WebSphere+Message+Broker&release=6.1.0.11&platform=All&function=aparId&apars=IC94219

APAR IC94219 is targeted for availability in IBM WebSphere Message Broker V6.1.0.12


For IBM Integration Bus V9.0 an interim fix for APAR IC94219 is available from IBM Fix Central:

http://www.ibm.com/support/fixcentral/swg/selectFixes?parent=ibm~WebSphere&product=ibm/WebSphere/Integration+Bus&release=All&platform=All&function=aparId&apars=IC94219

APAR IC94219 is targeted for availability in IBM Integration Bus V9.0.0.1

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.


Workaround(s):
None known, apply fixes

Mitigation(s):
None known

REFERENCES:



RELATED INFORMATION:
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog


CHANGE HISTORY
18-Sep-2013: 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 Flash.


Note: 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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Document information


More support for:

WebSphere Message Broker

Software version:

6.1, 7.0, 8.0, 9.0

Operating system(s):

AIX, HP-UX, Linux, Solaris, Windows

Reference #:

1644565

Modified date:

2013-09-18

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