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             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.0878
      Security Bulletin: IBM Algo One CPU utilization (CVE-2014-0963)
                                4 June 2014

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

Product:           IBM Algo One
Publisher:         IBM
Operating System:  AIX
                   Linux variants
                   Solaris
                   Windows
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-0963  

Reference:         ESB-2014.0838
                   ESB-2014.0821
                   ESB-2014.0819
                   ESB-2014.0815
                   ESB-2014.0783
                   ESB-2014.0782
                   ESB-2014.0764
                   ESB-2014.0714
                   ESB-2014.0679

Original Bulletin: 
   http://www-01.ibm.com/support/docview.wss?uid=swg21674493

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Security Bulletin: IBM Algo One CPU utilization (CVE-2014-0963)

Security Bulletin

Document information

More support for:

Algo One

Algo Core

Software version:

5.0

Operating system(s):

AIX, Linux, Solaris, Windows

Reference #:

1674493

Modified date:

2014-05-28

Summary

IBM Algo One is affected by a problem related to the SSL implementation which,
under very specific conditions, can cause CPU utilization to rapidly increase.

Vulnerability Details

CVE ID: CVE-2014-0963

DESCRIPTION:

IBM Algo One is affected by a problem with the handling of certain SSL 
messages. The TLS implementation can, under very specific conditions, cause 
CPU utilization to rapidly increase. The situation occurs only in a certain 
error case that causes a single thread to begin looping. If this happens 
multiple times, more threads will begin to loop and an increase in CPU 
utilization will be seen. This increase could ultimately result in CPU 
exhaustion and unresponsiveness of the IBM Algo One and other software running
on the affected system.

This issue can affect the availability of the system, but does not impact 
system confidentiality or integrity. This vulnerability can be remotely 
exploited, authentication is not required and the exploit is moderately 
complex.

To determine if your systems are being affected by this issue, you can monitor
the CPU utilization for IBM Algo One instances.

CVSS Base Score: 7.1

CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/92844 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 Algo One 5.0.0

Remediation/Fixes

IBM has provided patches for all affected versions. Follow the installation 
instructions in the README files included with the patch.

Patch Number 		Download URL

AlgoSuite 500-044 	http://www.ibm.com/support/fixcentral/swg/quickorder?parent=ibm~Information+Management&product=ibm/Information+Management/Algo+One&release=All&platform=All&function=fixId&fixids=5.0.0.0-Algo-One-if0044:0&includeSupersedes=0&source=fc&login=true

Workarounds and Mitigations

Monitor CPU utilization of your Program Name instances. If utilization becomes
abnormally high, stop and restart the affected instance.

References

Complete CVSS Guide

On-line Calculator V2

Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

Change History

2014-05-27 : 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.

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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