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

                               ESB-2013.0399
                     Multiple OpenSSL vulnerabilities
                               18 March 2013

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

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

Product:           OpenSSL
Publisher:         IBM
Operating System:  AIX
Impact/Access:     Access Confidential Data -- Remote/Unauthenticated
                   Denial of Service        -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2013-0169 CVE-2013-0166 

Reference:         ASB-2013.0025
                   ESB-2013.0383
                   ESB-2013.0366
                   ESB-2013.0316
                   ESB-2013.0282
                   ESB-2013.0235

Original Bulletin: 
   http://aix.software.ibm.com/aix/efixes/security/openssl_advisory5.asc

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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:

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:

    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0169
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0166

II. CVSS

    CVE-2013-0169
    CVSS Base Score: 2.6
    CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/81902 for the
    current score
    CVSS Environmental Score*: Undefined
    CVSS String: (AV:N/AC:H/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 4/15/13)

    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:

        security-alert@austin.ibm.com

    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:

            security-alert@austin.ibm.com

        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: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-0169
    CVE-2013-0166: http://cve.mitre.org/cgi-bin/cvename.cgi?name=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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===========================================================================
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