Date: 17 December 2014
References: ESB-2015.0067 ESB-2015.0570 ESB-2016.0537
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AUSCERT External Security Bulletin Redistribution
Security Bulletin: IBM DB2 XML Query Will Cause Excessive
CPU Usage (CVE-2014-8901)
17 December 2014
AusCERT Security Bulletin Summary
Product: IBM DB2
Operating System: AIX
Impact/Access: Denial of Service -- Existing Account
CVE Names: CVE-2014-8901
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Security Bulletin: IBM DB2 XML Query Will Cause Excessive CPU Usage
More support for:
DB2 for Linux, UNIX and Windows
9.5, 9.7, 9.8, 10.1, 10.5
AIX, HP-UX, Linux, Solaris, Windows
Advanced Enterprise Server, Advanced Workgroup Server, Enterprise Server,
Express, Express-C, Personal, Workgroup Server
IBM DB2 contains a security vulnerability which could allow a remote,
authenticated user to exploit a vulnerability in DB2's XML library to cause a
disruption of service.
CVE ID: CVE-2014-8901
IBM DB2 contains a disruption of service vulnerability. A remote,
authenticated user can issue a specially crafted XML query to cause DB2 to
increase CPU usage and create serious performance degradation to the system.
CVSS Base Score: 4.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/99110 for the
CVSS Environmental Score*: Undefined
CVSS String: (AV:N/AC:L/Au:S/C:N/I:N/A:P)
Affected Products and Versions
All fix pack levels of IBM DB2 V9.5, V9.7, V10.1 and V10.5 editions listed
below and running on AIX, Linux, HP, Solaris or Windows are affected.
IBM DB2 Express Edition
IBM DB2 Workgroup Server Edition
IBM DB2 Enterprise Server Edition
IBM DB2 Advanced Enterprise Server Edition
IBM DB2 Advanced Workgroup Server Edition
IBM DB2 Connect Application Server Edition
IBM DB2 Connect Enterprise Edition
IBM DB2 Connect Unlimited Edition for System i
IBM DB2 Connect Unlimited Edition for System z
The DB2 Connect products mentioned are affected only if a local database has
IBM DB2 pureScale Feature for Enterprise Server Edition, V9.8, running on AIX
or Linux is affected.
The recommended solution is to apply the appropriate fix for this
The fix for DB2 and DB2 Connect V10.5 is in V10.5 FP5, available for download
from Fix Central.
Customers running any vulnerable fixpack level of an affected Program, V9.5,
V9.7, V9.8, or V10.1 can contact support to obtain a special build containing
an interim fix for this issue. These special builds are available based on the
most recent fixpack level for each impacted release: DB2 V9.5 FP10, V9.7 FP10,
DB2 V9.8 FP5 or DB2 v10.1 FP4. They can be applied to any affected fixpack
level of the appropriate release to remediate this vulnerability. Additionally
fixes based on DB2 V9.5 FP9, V9.7 FP9a or DB2 V10.1 FP3a will be made
available on request.
Refer to the folowing chart to determine how to proceed to obtain a needed
fixpack or special build.
Release Fixed in fix pack APAR Download URL
V9.5 TBD IT05936 Please contact technical support.
V9.7 TBD IT05937 Please contact technical support.
V9.8 TBD IT05938 Please contact technical support.
V10.1 TBD IT05939 Please contact technical support.
V10.5 FP5 IT05933 http://www.ibm.com/support/docview.wss?uid=swg24038828
Contact Technical Support:
In the United States and Canada dial 1-800-IBM-SERV
View the support contacts for other countries outside of the United States.
Electronically open a Service Request with DB2 Technical Support.
Note: IBMs statements regarding its plans, directions, and intent are subject
to change or withdrawal without notice at IBMs sole discretion. Information
regarding potential future products is intended to outline our general product
direction and it should not be relied on in making a purchasing decision. The
information mentioned regarding potential future products is not a commitment,
promise, or legal obligation to deliver any material, code or functionality.
Information about potential future products may not be incorporated into any
contract. The development, release, and timing of any future features or
functionality described for our products remains at our sole discretion.
Workarounds and Mitigations
Get Notified about Future Security Bulletins
Subscribe to My Notifications to be notified of important product support
alerts like this.
Complete CVSS Guide
On-line Calculator V2
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
The vulnerability was reported to IBM by Danny Tsechansky.
December 15, 2014: 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.
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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