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IBM SECURITY ADVISORY

First Issued: Fri Mar 15 03:20:11 CDT 2013

The most recent version of this document is available here:
| Updated: Wed Jun 5 10:22:29 CDT 2013
| Update: Fix available for FIPS version
| Update: Corrected CVSS base score and vector

http://aix.software.ibm.com/aix/efixes/security/openssl_advisory5.asc
or
ftp://aix.software.ibm.com/aix/efixes/security/openssl_advisory5.asc

                       VULNERABILITY SUMMARY

VULNERABILITY: Multiple OpenSSL vulnerabilities

PLATFORMS: AIX 5.3, 6.1 and 7.1
VIOS 2.X

SOLUTION: Apply the fix as described below.

THREAT: See below

CVE Numbers: CVE-2013-0169
CVE-2013-0166

Reboot required? NO
Workarounds? NO
Protected by FPM? NO
Protected by SED? NO

                       DETAILED INFORMATION

I. DESCRIPTION (From cve.mitre.org)

CVE-2013-0169
The TLS protocol 1.1 and 1.2 and the DTLS protocol 1.0 and 1.2, as
used in OpenSSL, OpenJDK, PolarSSL, and other products, do not
properly consider timing side-channel attacks on a MAC check 
requirement during the processing of malformed CBC padding, which 
allows remote attackers to conduct distinguishing attacks and 
plaintext-recovery attacks via statistical analysis of timing data
for crafted packets, aka the "Lucky Thirteen" issue. 

CVE-2013-0166
OpenSSL before 0.9.8y, 1.0.0 before 1.0.0k, and 1.0.1 before 1.0.1d 
does not properly perform signature verification for OCSP responses,
which allows remote attackers to cause a denial of service (NULL 
pointer dereference and application crash) via an invalid key. 

Please see the following for more information:

https://vulners.com/cve/CVE-2013-0169
https://vulners.com/cve/CVE-2013-0166

II. CVSS

CVE-2013-0169

| CVSS Base Score: 4.3
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/81902 for the
current score
CVSS Environmental Score*: Undefined
| CVSS String: (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVE-2013-0166
CVSS Base Score: 5.0
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/81904 for the
current score
CVSS Environmental Score*: Undefined
CVSS String: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

III. PLATFORM VULNERABILITY ASSESSMENT

To determine if your system is vulnerable, execute the following
command:

lslpp -L openssl.base

On VIO Server:

oem_setup_env
lslpp -L openssl.base

The following fileset levels are vulnerable:

AIX 7.1, 6.1, 5.3: all versions less than or equal 0.9.8.2400
AIX 7.1, 6.1, 5.3: FIPS capable versions less than or equal 12.9.8.2400
VIOS 2.X: all versions less than or equal 0.9.8.2400

IMPORTANT: If AIX OpenSSH is in use, it must be updated to version
OpenSSH 6.0 or later, depending on the OpenSSL version according to
following compatibility matrix:

AIX              OpenSSL                    OpenSSH
------------------------------------------------------------------
5.3,6.1,7.1      OpenSSL 0.9.8.25xx         OpenSSH 6.0.0.61xx
                 (Available)

5.3,6.1,7.1      OpenSSL-fips 12.9.8.25xx   OpenSSH 6.0.0.61xx 

| (Available)

VIOS             OpenSSL                    OpenSSH
------------------------------------------------------------------
2.X              OpenSSL 0.9.8.25xx         OpenSSH 6.0.0.61xx
                 (Available)

AIX OpenSSH can be downloaded from:

OpenSSH 6.0:
http://sourceforge.net/projects/openssh-aix
OpenSSH 6.0.0.61xx
https://www14.software.ibm.com/webapp/iwm/web/preLogin.do?source=aixbp

IV. FIXES

A fix is available, and it can be downloaded from:

https://www14.software.ibm.com/webapp/iwm/web/preLogin.do?source=aixbp

To extract the fixes from the tar file:

zcat openssl-0.9.8.2500.tar.Z | tar xvf -
or
zcat openssl-fips-12.9.8.2500.tar.Z | tar xvf -

IMPORTANT: If possible, it is recommended that a mksysb backup
of the system be created.  Verify it is both bootable and
readable before proceeding.

To preview the fix installation:

installp -apYd . openssl

To install the fix package:

installp -aXYd . openssl

V. WORKAROUNDS

There are no workarounds.

VI. CONTACT INFORMATION

If you would like to receive AIX Security Advisories via email,
please visit:

    http://www.ibm.com/systems/support

and click on the "My notifications" link.

To view previously issued advisories, please visit:

    http://www14.software.ibm.com/webapp/set2/subscriptions/onvdq

Comments regarding the content of this announcement can be
directed to:

    [email protected]

To obtain the PGP public key that can be used to communicate
securely with the AIX Security Team you can either:

    A. Send an email with "get key" in the subject line to:

        [email protected]

    B. Download the key from our web page:

http://www.ibm.com/systems/resources/systems_p_os_aix_security_pgpkey.txt

    C. Download the key from a PGP Public Key Server. The key ID is:

    0x28BFAA12

Please contact your local IBM AIX support center for any
assistance.

eServer is a trademark of International Business Machines
Corporation.  IBM, AIX and pSeries are registered trademarks of
International Business Machines Corporation.  All other trademarks
are property of their respective holders.

VII. REFERENCES:

Complete CVSS Guide: http://www.first.org/cvss/cvss-guide.html
On-line Calculator V2: http://nvd.nist.gov/cvss.cfm?calculator&adv&version=2
X-Force Vulnerability Database: http://xforce.iss.net/xforce/xfdb/81902
X-Force Vulnerability Database: http://xforce.iss.net/xforce/xfdb/81904
CVE-2013-0169: https://vulners.com/cve/CVE-2013-0169
CVE-2013-0166: https://vulners.com/cve/CVE-2013-0166

*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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