Operating System:

[AIX]

Published:

25 March 2015

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2015.0735
       Security Bulletin: Vulnerabilities in GSKit affect WebSphere
                  Voice Response for AIX (CVE-2015-0138)
                               25 March 2015

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

Product:           IBM WebSphere Voice Response
Publisher:         IBM
Operating System:  AIX
Impact/Access:     Access Privileged Data         -- Remote/Unauthenticated
                   Provide Misleading Information -- Remote/Unauthenticated
                   Reduced Security               -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2015-0138  

Reference:         ESB-2015.0719
                   ESB-2015.0632
                   ESB-2015.0542

Original Bulletin: 
   http://www-01.ibm.com/support/docview.wss?uid=swg21699442

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Security Bulletin: Vulnerabilities in GSKit affect WebSphere Voice Response 
for AIX (CVE-2015-0138) Security Bulletin

Document information

More support for: 
WebSphere Voice Response for AIX
WebSphere Voice Response

Software version: 
6.1

Operating system(s): 
AIX

Software edition: 
All Editions

Reference #: 
1699442

Modified date: 
2015-03-23

Summary

GSKit is an IBM component that is used by WebSphere Voice Response. The GSKit
that is shipped with WebSphere Voice Response contains multiple security 
vulnerabilities including the FREAK: Factoring Attack on RSA-EXPORT keys" 
TLS/SSL client and server vulnerability. WebSphere Voice Response has 
addressed the applicable CVEs.

Vulnerability Details

CVEID: CVE-2015-0138 
DESCRIPTION: A vulnerability in various IBM SSL/TLS implementations could allow
a remote attacker to downgrade the security of certain SSL/TLS connections. An 
IBM SSL/TLS client implementation could accept the use of an RSA temporary key 
in a non-export RSA key exchange ciphersuite. This could allow a remote 
attacker using man-in-the-middle techniques to facilitate brute-force 
decryption of TLS/SSL traffic between vulnerable clients and servers.

This vulnerability is also known as the FREAK attack. 
CVSS Base Score: 4.3 
CVSS Temporal Score: See 
http://exchange.xforce.ibmcloud.com/#/vulnerabilities/100691 for the current 
score 
CVSS Environmental Score*: Undefined 
CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N) 

Affected Products and Versions

WebSphere Voice Response for AIX V6.1 

Remediation/Fixes

WebSphere Voice Response V6.1 fixlevel 6.1.0.501
APAR: IV69846
PTFs: U868645, U868646
Fix Central download link: APAR IV69846
You should verify applying this fix does not cause any compatibility issues. 

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

*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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