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ESB-2014.2430 - [Win][Linux][HP-UX][Solaris][AIX] IBM DB2: Denial of service - Existing account

Date: 17 December 2014
References: ESB-2015.0067  ESB-2015.0570  ESB-2016.0537  

Click here for printable version
Click here for PGP verifiable version
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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.2430
         Security Bulletin: IBM DB2 XML Query Will Cause Excessive
                         CPU Usage (CVE-2014-8901)
                             17 December 2014

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           IBM DB2
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  

Original Bulletin: 
   http://www-01.ibm.com/support/docview.wss?uid=swg21692358

- --------------------------BEGIN INCLUDED TEXT--------------------

Security Bulletin: IBM DB2 XML Query Will Cause Excessive CPU Usage 
(CVE-2014-8901)

Security Bulletin

Document information

More support for:

DB2 for Linux, UNIX and Windows

Software version:

9.5, 9.7, 9.8, 10.1, 10.5

Operating system(s):

AIX, HP-UX, Linux, Solaris, Windows

Software edition:

Advanced Enterprise Server, Advanced Workgroup Server, Enterprise Server, 
Express, Express-C, Personal, Workgroup Server

Reference #:

1692358

Modified date:

2014-12-15

Summary

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.

Vulnerability Details

CVE ID: CVE-2014-8901

DESCRIPTION:

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:

CVSS Base Score: 4.0

CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/99110 for the 
current score

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 
been created.

IBM DB2 pureScale Feature for Enterprise Server Edition, V9.8, running on AIX
or Linux is affected.

Remediation/Fixes

The recommended solution is to apply the appropriate fix for this 
vulnerability.

FIX:

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

None.

Get Notified about Future Security Bulletins

Subscribe to My Notifications to be notified of important product support 
alerts like this.

References

Complete CVSS Guide

On-line Calculator V2

Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

Acknowledgement

The vulnerability was reported to IBM by Danny Tsechansky.

Change History

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.

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.

- --------------------------END INCLUDED TEXT--------------------

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===========================================================================
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The University of Queensland
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===========================================================================
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