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             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.0880
        Security Bulletin: IBM Sterling Connect:Direct for UNIX CPU
                        utilization (CVE-2014-0963)
                                4 June 2014

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

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

Product:           IBM Sterling Connect:Direct
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   Linux variants
                   Solaris
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-0963  

Reference:         ESB-2014.0878
                   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=swg21673847

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Security Bulletin: IBM Sterling Connect:Direct for UNIX CPU utilization 
(CVE-2014-0963)

Security Bulletin

Document information

More support for:

Sterling Connect:Direct for UNIX

Software version:

4.2

Operating system(s):

AIX, HP-UX, Linux, Solaris

Reference #:

1673847

Modified date:

2014-05-30


Summary

IBM Sterling Connect:Direct for UNIX is affected by a problem related to the 
SSL implementation which, under very specific conditions, can cause CPU 
utilization to rapidly increase.

Vulnerability Details

IBM Sterling Connect:Direct for UNIX 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 Sterling 
Connect:Direct for UNIX 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 Sterling Connect:Direct for UNIX 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 Sterling Connect:Direct for UNIX 4.2.0.0

No other version of IBM Sterling Connect:Direct for UNIX is affected

Remediation/Fixes

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

Version 	APAR 	Remediation/First Fix

4.2.0.0 	IT01935 Upgrade to or install directly from 4.2.0.1, available 
			on Fix Central

Workarounds and Mitigations

None

References

Complete CVSS Guide

On-line Calculator V2

Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

Change History

30 May 2014: 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.

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

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