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

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

                               ESB-2014.0782
Security Bulletin: IBM Informix Client SDK CPU utilization (CVE-2014-0963)
                                21 May 2014

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

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

Product:           IBM Informix Client
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   Linux variants
                   OS X
                   Solaris
                   Windows
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-0963  

Reference:         ESB-2014.0764
                   ESB-2014.0714
                   ESB-2014.0679

Original Bulletin: 
   http://www-01.ibm.com/support/docview.wss?uid=swg21673018

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

Security Bulletin: IBM Informix Client SDK CPU utilization (CVE-2014-0963)

Security Bulletin

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 #:
1673018

Modified date:
2014-05-14

Summary

Informix Client SDK 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:
Informix Client SDK 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 Informix Client SDK 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 Informix Client SDK 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

CSDK 3.50, 3.70 and 4.10

Remediation/Fixes

Product				Remediation/First Fix
Informix Client SDK 4.10	Upgrade to 4.10.xC4 or download and install
				GSKit (see next section)
Informix Client SDK 3.70	Upgrade to 3.70.xC9 or download and install
				GSKit (see next section)
Informix Client SDK 3.50	Upgrade and install GSKit (see next section)

Upgrading GSKit:

    Download the appropriate GSKit using the following table:
    Product	Required GSKit version	GSKit link
    Informix Client SDK 4.10

    Informix Client SDK 3.70 (all platforms other than HP-UX PA-RISC)
    8.0.50.20	    AIX (pSeries_32, pSeries_64)
    HP-UX (Itanium_32, Itanium_64)
    Linux (x86_32, x86_64, pSeries_64, zSeries_32, zSeries_64)
    Solaris (SPARC_32, SPARC_64, x86_32, x86_64)
    Windows (x86_32, x86_64)
    Informix Client SDK 3.70 (HP-UX PA-RISC platforms only)	7.0.4.50
    HP-UX (PA-RISC_32, PA-RISC_64)
    Informix Client SDK 3.50	7.0.4.50	AIX (pSeries_32, pSeries_64)
    HP-UX (Itanium_32, Itanium_64, PA-RISC_32, PA-RISC_64)
    Linux (x86_32, x86_64, pSeries_64, zSeries_32, zSeries_64)
    Solaris (SPARC_32, SPARC_64, x86_32, x86_64)
    Windows (x86_32, x86_64)
    Unix/Linux instructions:
	Copy the downloaded tar file(s) to $INFORMIXDIR/gskit. Note: the
	old gskit .tar files must be removed or renamed to not end in .tar.
	Bring the database server offline. (e.g. onmode -ky).
	Change to the GSKit directory (cd $INFORMIXDIR/gskit).
	As root, run "./installgskit".
	To verify the installation, run the appropriate command
	(i.e. gsk7ver, gsk7ver_64, gsk8ver or gsk8ver_64) for the GSKit
	you installed. The new version should be 7.0.4.50 or 8.0.50.20.
    Windows GSkit version 7 x86_32 instructions:
	Copy/download the gsk7d_7.0.4.50_win32.exe file to C:\tmp.
	Start the 'cmd' program.
	Change to the C:\temp directory (cd c:\tmp).
	Run "gsk7d_7.0.4.50_win32.exe /D tmp". This will extract the files
	to the C:\tmp\tmp directory.
	Change to the C:\tmp\tmp directory (cd C:\tmp\tmp).
	Run "setup GSK7BAS". Accept all of the defaults.
	To verify the installation, run gsk7ver to verify the
	installation. The new version should be 7.0.4.50.
    All other Windows versions instructions:
	Copy/download the appropriate file (gsk7d_7.0.4.50_win64.msi,
	gsk8ssl32.exe or gsk8ssl64.exe) to C:\tmp.
	Using Windows Explorer, double click on the downloaded file. This
	will start Install Shield. Accept all of the defaults.
	To verify the installation, run the appropriate command
	(i.e. gsk7ver_64, gsk8ver or gsk8ver_64) for the GSKit you
	installed. The new version should be 7.0.4.50 or 8.0.50.20.

Workarounds and Mitigations

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

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

Change History

14 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--------------------

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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=kV5f
-----END PGP SIGNATURE-----