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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.
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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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