-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2014.2483
   Security Bulletin: TLS padding vulnerability affects Informix Client
             Software Development Kit (CSDK) ( CVE-2014-8730)
                             22 December 2014

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

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

Product:           IBM Informix Tools
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   Linux variants
                   OS X
                   Solaris
                   Windows
Impact/Access:     Access Privileged Data -- Remote with User Interaction
                   Reduced Security       -- Remote with User Interaction
Resolution:        Mitigation
CVE Names:         CVE-2014-8730  

Reference:         ESB-2014.2482
                   ESB-2014.2480
                   ESB-2014.2479
                   ESB-2014.2478

Original Bulletin: 
   http://www-01.ibm.com/support/docview.wss?uid=swg21693059

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

Security Bulletin: TLS padding vulnerability affects Informix Client Software
Development Kit (CSDK) ( CVE-2014-8730)

Document information

More support for:

Informix Tools

Informix Client Software Development Kit (CSDK)

Software version:

3.5, 3.7, 4.1

Operating system(s):

AIX, HP-UX, Linux, Mac OS X, Solaris, Windows

Reference #:

1693059

Modified date:

2014-12-19

Security Bulletin

Summary

Informix Client Software Development Kit (CSDK) can be affected by a TLS 
(Transport Layer Security) padding vulnerability which can allow a remote 
attacker to obtain sensitive information.

Vulnerability Details

The following vulnerability affects IBM Informix Client Software Development 
Kit.

CVEID: CVE-2014-8730

DESCRIPTION: IBM Client Software Development Kit could allow a remote attacker
to obtain sensitive information, caused by the failure to check the contents 
of the padding bytes when using CBC cipher suites of some TLS implementations.
A remote user with the ability to conduct a man-in-the-middle attack could 
exploit this vulnerability via a POODLE (Padding Oracle On Downgraded Legacy 
Encryption) like attack to decrypt sensitive information and calculate the 
plaintext of secure connections.

CVSS Base Score: 4.3

CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/99216 for the 
current score

CVSS Environmental Score*: Undefined

CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)

Affected Products and Versions

Supported versions of CSDK: 3.50, 3.70, and 4.10

Workarounds and Mitigations

In the client software environment, set GSK_STRICTCHECK_CBCPADBYTES=GSK_TRUE

Restart the client application process in order for the environment setting to
take affect.

Note: Applying this fix does not cause any compatibility issues.

Get Notified about Future Security Bulletins

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

Important note

IBM strongly suggests that all System z customers be subscribed to the System
z Security Portal to receive the latest critical System z security and 
integrity service. If you are not subscribed, see the instructions on the 
System z Security web site. Security and integrity APARs and associated fixes
will be posted to this portal. IBM suggests reviewing the CVSS scores and 
applying all security or integrity fixes as soon as possible to minimize any 
potential risk.

References

Complete CVSS Guide

On-line Calculator V2

Related information

IBM Secure Engineering Web Portal

IBM Product Security Incident Response Blog

TLS Padding Vulnerability affects Informix Dynamic Server

Change History

19 December 2014

*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--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        http://www.auscert.org.au/render.html?cid=1980

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=/qNi
-----END PGP SIGNATURE-----