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             AUSCERT External Security Bulletin Redistribution

                               ESB-2013.0547
           Security Bulletin: IBM Informix Cryptographic Library
           Updates (CVE-2012-2190, CVE-2012-2191, CVE-2012-2203)
                               17 April 2013

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

Product:           IBM Informix Servers
Publisher:         IBM
Operating System:  AIX
                   HP-UX
                   Linux variants
                   OS X
                   Solaris
                   Windows
Impact/Access:     Denial of Service              -- Remote/Unauthenticated
                   Provide Misleading Information -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2012-2203 CVE-2012-2191 CVE-2012-2190

Reference:         ESB-2013.0301
                   ESB-2012.0976
                   ESB-2012.0934
                   ESB-2012.0933
                   ESB-2012.0930
                   ESB-2012.0929
                   ESB-2012.0916
                   ESB-2012.0801
                   ESB-2012.0726
                   ESB-2012.1044.2

Original Bulletin: 
   https://www-304.ibm.com/support/docview.wss?rs=630&uid=swg21620711

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Security Bulletin: IBM Informix Cryptographic Library Updates (CVE-2012-2190,
CVE-2012-2191, CVE-2012-2203)

Flash (Alert)

Document information

Informix Servers

Software version: 11.7, 11.70

Operating system(s): AIX, HP-UX, Linux, Mac OS X, Solaris, Windows

Reference #: 1620711

Modified date: 2013-04-12

Abstract

Multiple security problems exist in the IBM GSKit libraries that IBM Informix
and IBM Informix ClientSDK use to provide communications security and other 
cryptographic functionality. Content

CVE ID: CVE-2012-2190

DESCRIPTION: 
GSKit allows remote attackers to cause a denial of service 
(daemon crash) via a crafted ClientHello message in the TLS Handshake 
Protocol.

CVSS: 
CVSS Base Score: 5 
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/75994 for the 
current score 
CVSS Environmental Score*: Undefined 
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVE ID: CVE-2012-2191

DESCRIPTION: 
GSKit does not properly validate data during execution of a 
protection mechanism against the Vaudenay SSL CBC timing attack, which allows
remote attackers to cause a denial of service (application crash) via crafted
values in the TLS Record Layer.

CVSS: 
CVSS Base Score: 5
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/75996 for the 
current score 
CVSS Environmental Score*: Undefined 
CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVE ID: CVE-2012-2203

DESCRIPTION: 
GSKit uses the PKCS #12 file format for certificate objects 
without enforcing file integrity, which makes it easier for remote attackers 
to spoof SSL servers via vectors involving insertion of an arbitrary root 
Certification Authority (CA) certificate.

CVSS: 
CVSS Base Score; 5.8 
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/77280 for the 
current score 
CVSS Environmental Score*: Undefined 
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:N)

AFFECTED PRODUCTS: IBM Informix 11.50.xC9W2 or earlier IBM Informix 11.70.xC6
or earlier IBM Informix ClientSDK 3.50.xC9W2 or earlier IBM Informix ClientSDK
3.70.xC6 or earlier

REMEDIATION: Upgrade to the latest fixpack for the products.

Fix(es): The fix is available in these versions at Fix Central:

IBM Informix 11.50 upgrade to Informix 11.50.xC9W3 or later IBM Informix 11.70
upgrade to Informix 11.70.xC7 or later IBM Informix ClientSDK 3.50 upgrade 
to CSDK 3.50.xC9W3 or later IBM Informix ClientSDK 3.70 upgrade to CSDK 
3.70.xC7 or later

Workaround(s): None known.

Mitigation(s): None known.

REFERENCES:

Complete CVSS Guide 
On-line Calculator V2 
CVE-2012-2190 
CVE-2012-2191 
CVE-2012-2203 
http://xforce.iss.net/xforce/xfdb/75994 
http://xforce.iss.net/xforce/xfdb/75996 
http://xforce.iss.net/xforce/xfdb/77280

RELATED INFORMATION:

IBM Secure Engineering Web Portal 
IBM Product Security Incident Response Blog

CHANGE HISTORY: 2013-04-12 Original version 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 Flash.

Note: 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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