IBM SECURITY ADVISORY

First Issued: Wed Feb 4 06:24:41 CST 2015

The most recent version of this document is available here:

http://aix.software.ibm.com/aix/efixes/security/openssl_advisory12.asc
https://aix.software.ibm.com/aix/efixes/security/openssl_advisory12.asc
ftp://aix.software.ibm.com/aix/efixes/security/openssl_advisory12.asc

                       VULNERABILITY SUMMARY

1. VULNERABILITY: AIX OpenSSL does not properly calculate the square of a BIGNUM
   value which makes it easier for attacker to defeat cryptographic
   protection mechanisms

   PLATFORMS: AIX 5.3, 6.1 and 7.1
   VIOS 2.2.*

   SOLUTION: Apply the fix as described below.

   THREAT: See below

   CVE Numbers: CVE-2014-3570

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

2.VULNERABILITY: AIX OpenSSL Denial of Service due to NULL pointer dereference
while processing a DTLS message

PLATFORMS:          AIX 5.3, 6.1 and 7.1
                    VIOS 2.2.*

SOLUTION:           Apply the fix as described below.

THREAT:             See below

CVE Numbers:        CVE-2014-3571

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

3. VULNERABILITY: AIX OpenSSL allows remote SSL servers to conduct ECDHE-to-ECDH
   downgrade attacks and thereby causing loss of forward secrecy

   PLATFORMS: AIX 5.3, 6.1 and 7.1
   VIOS 2.2.*

   SOLUTION: Apply the fix as described below.

   THREAT: See below

   CVE Numbers: CVE-2014-3572

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

4. VULNERABILITY: AIX OpenSSL allows remote attackers to defeat the fingerprint-based
   certificate blacklist protection mechanism

   PLATFORMS: AIX 5.3, 6.1 and 7.1
   VIOS 2.2.*

   SOLUTION: Apply the fix as described below.

   THREAT: See below

   CVE Numbers: CVE-2014-8275

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

5. VULNERABILITY: AIX OpenSSL allows remote SSL servers to conduct RSA-to-EXPORT_RSA
   downgrade attacks and thereby offering a weak ephemeral RSA key in
   a noncompliant role

   PLATFORMS: AIX 5.3, 6.1 and 7.1
   VIOS 2.2.*

   SOLUTION: Apply the fix as described below.

   THREAT: See below

   CVE Numbers: CVE-2015-0204

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

6. VULNERABILITY: AIX OpenSSL allows remote attackers to obtain access without
   knowledge of a private key on a server that recognizes a
   Certification Authority with DH support

   PLATFORMS: AIX 5.3, 6.1 and 7.1
   VIOS 2.2.*

   SOLUTION: Apply the fix as described below.

   THREAT: See below

   CVE Numbers: CVE-2015-0205

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

7. VULNERABILITY: AIX OpenSSL allows remote attackers to cause Denial of Service
   by sending many duplicate records for the next epoch, leading
   to failure of replay detection

   PLATFORMS: AIX 5.3, 6.1 and 7.1
   VIOS 2.2.*

   SOLUTION: Apply the fix as described below.

   THREAT: See below

   CVE Numbers: CVE-2015-0206

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

===============================================================================
DETAILED INFORMATION

I. DESCRIPTION

1. CVE-2014-3570
	OpenSSL does not properly calculate the square of a BIGNUM value, which might 
    make it easier for remote attackers to defeat cryptographic protection mechanisms 
    via unspecified vectors

2. CVE-2014-3571
    OpenSSL  allows remote attackers to cause a denial of service via a crafted DTLS 
    message that is processed with a different read operation for the handshake 
    header than for the handshake body

3. CVE-2014-3572
    OpenSSL allows remote SSL servers to conduct ECDHE-to-ECDH downgrade attacks 
    and trigger loss of forward secrecy by omitting the ServerKeyExchange message.

4. CVE-2014-8275
    OpenSSL does not enforce certain constraints on certificate data, which allows 
    remote attackers to defeat a fingerprint-based certificate-blacklist protection 
    mechanism by including crafted data within a certificate's unsigned portion

5. CVE-2015-0204
    OpenSSL allows remote SSL servers to conduct RSA-to-EXPORT_RSA downgrade attacks 
    and facilitate brute-force decryption by offering a weak ephemeral RSA key 
    in a noncompliant role.

6. CVE-2015-0205
    OpenSSL accepts client authentication with a Diffie-Hellman (DH) certificate 
    without requiring a CertificateVerify message, which allows remote attackers 
    to obtain access without knowledge of a private key via crafted TLS Handshake 
    Protocol traffic to a server that recognizes a Certification Authority 
    with DH support.

7. CVE-2015-0206
    OpenSSL could allow remote attackers to cause a denial of service (memory 
    consumption) by sending many duplicate records for the next epoch, leading 
    to failure of replay detection.

II. CVSS

1. CVE-2014-3570
CVSS Base Score: 2.6
CVSS Temporal Score: http://xforce.iss.net/xforce/xfdb/99710
CVSS Environmental Score*: Undefined
CVSS Vector: AV:N/AC:H/Au:N/C:N/I:P/A:N

2. CVE-2014-3571
CVSS Base Score: 5
CVSS Temporal Score: http://xforce.iss.net/xforce/xfdb/99703
CVSS Environmental Score*: Undefined
CVSS Vector:  AV:N/AC:L/Au:N/C:N/I:N/A:P

3. CVE-2014-3572
CVSS Base Score: 1.2
CVSS Temporal Score: http://xforce.iss.net/xforce/xfdb/99705
CVSS Environmental Score*: Undefined
CVSS Vector:  AV:L/AC:H/Au:N/C:N/I:P/A:N

4. CVE-2014-8275
CVSS Base Score: 1.2
CVSS Temporal Score: http://xforce.iss.net/xforce/xfdb/99709
CVSS Environmental Score*: Undefined
CVSS Vector:  AV:L/AC:H/Au:N/C:N/I:P/A:N

5. CVE-2015-0204
CVSS Base Score: 1.2
CVSS Temporal Score: http://xforce.iss.net/xforce/xfdb/99707
CVSS Environmental Score*: Undefined
CVSS Vector:   AV:L/AC:H/Au:N/C:N/I:P/A:N

6. CVE-2015-0205
CVSS Base Score: 2.1
CVSS Temporal Score: http://xforce.iss.net/xforce/xfdb/99708 
CVSS Environmental Score*: Undefined
CVSS Vector:   AV:N/AC:H/Au:S/C:N/I:P/A:N

7. CVE-2015-0206
CVSS Base Score: 5
CVSS Temporal Score: http://xforce.iss.net/xforce/xfdb/99704
CVSS Environmental Score*: Undefined
CVSS Vector:   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

    The following fileset levels are vulnerable:

A. CVE-2014-3572, CVE-2015-0205, CVE-2015-0206

    AIX Fileset      Lower Level  Upper Level  
    ------------------------------------------
    openssl.base     1.0.1.500    1.0.1.513

B. CVE-2014-3570, CVE-2014-3571, CVE-2014-8275, CVE-2015-0204

    AIX Fileset      Lower Level  Upper Level   
    ------------------------------------------
    openssl.base     1.0.1.500     1.0.1.513
    openssl.base     0.9.8.401     0.9.8.2504
    openssl.base    12.9.8.1100   12.9.8.2504

Note, 0.9.8.401 and 12.9.8.1100 are the Lowest OpenSSL version
available in aix web download site. Even OpenSSL versions below 
this are impacted

IV. SOLUTIONS

A. FIXES

    Fix is available.  The fix can be downloaded via ftp
    from:

    ftp://aix.software.ibm.com/aix/efixes/security/openssl_fix12.tar

    The link above is to a tar file containing this signed
    advisory, fix packages, and OpenSSL signatures for each package.
    The fixes below include prerequisite checking. This will
    enforce the correct mapping between the fixes and AIX
    releases.

Note that the tar file contains Interim fixes that are based on OpenSSL version.

    AIX Level      Interim Fix (*.Z)            Fileset Name(prereq for installation)
    ---------------------------------------------------------------------------------
    5.3, 6.1, 7.1   IV69033s9a.150129.epkg.Z    openssl.base(1.0.1.513 version)
    5.3, 6.1, 7.1   IV69033s9b.150129.epkg.Z    openssl.base(0.9.8.2504 version)
    5.3, 6.1, 7.1   IV69033s9c.150129.epkg.Z    openssl.base(12.9.8.2504 version)

    VIOS Level     Interim Fix (*.Z)	        Fileset Name(prereq for installation)
    -------------------------------------------------------------------------------------
    2.2.*          IV69033s9a.150129.epkg.Z     openssl.base(1.0.1.513 version)
    2.2.*          IV69033s9b.150129.epkg.Z     openssl.base(0.9.8.2504 version)
    2.2.*          IV69033s9c.150129.epkg.Z     openssl.base(12.9.8.2504 version)


    To extract the fix from the tar file:

    tar xvf openssl_fix12.tar
    cd openssl_fix12

    Verify you have retrieved the fix intact:

    The checksums below were generated using the
    "openssl dgst -sha256 file" command is the followng:

    openssl dgst -sha256         						                filename	 
    ----------------------------------------------------------------------------------------------
	ba67b128e22ca028756100a473137b64cd8758c8182e4cda8bc3293b69cb53ba        IV69033s9a.150129.epkg.Z
    1c244927ae807d9c55dee91366ac88488a1312103a19f3017758989f91759f48        IV69033s9b.150129.epkg.Z
    361e751b0ce323b57b8865fca66e90f0dc541857a04b4c67f55874b01e98fffb        IV69033s9c.150129.epkg.Z

    These sums should match exactly. The OpenSSL signatures in the tar
    file and on this advisory can also be used to verify the
    integrity of the fixes.  If the sums or signatures cannot be
    confirmed, contact IBM AIX Security at
    [email protected] and describe the discrepancy.
        
    Published advisory OpenSSL signature file location:

    http://aix.software.ibm.com/aix/efixes/security/openssl_advisory12.asc.sig
    https://aix.software.ibm.com/aix/efixes/security/openssl_advisory12.asc.sig
    ftp://aix.software.ibm.com/aix/efixes/security/openssl_advisory12.asc.sig       

openssl dgst -sha1 -verify <pubkey_file> -signature <advisory_file>.sig <advisory_file>

    openssl dgst -sha1 -verify <pubkey_file> -signature <ifix_file>.sig <ifix_file>

        
B. FIX AND INTERIM FIX INSTALLATION

    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 a fix installation:

    installp -a -d fix_name -p all  # where fix_name is the name of the
                                    # fix package being previewed.
    To install a fix package:

    installp -a -d fix_name -X all  # where fix_name is the name of the
                                    # fix package being installed.

    Interim fixes have had limited functional and regression
    testing but not the full regression testing that takes place
    for Service Packs; however, IBM does fully support them.

    Interim fix management documentation can be found at:

    http://www14.software.ibm.com/webapp/set2/sas/f/aix.efixmgmt/home.html

    To preview an interim fix installation:

    emgr -e ipkg_name -p         # where ipkg_name is the name of the
                                 # interim fix package being previewed.

    To install an interim fix package:

    emgr -e ipkg_name -X         # where ipkg_name is the name of the
                                 # interim fix package being installed.

V. WORKAROUNDS

No workarounds.

VI. CONTACT US:

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

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

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 OpenSSL public key that can be used to verify the
signed advisories and ifixes:

    Download the key from our web page:

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

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

    A. Download the key from our web page:

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

    B. 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.

VII. REFERENCES:

Note: Keywords labeled as KEY in this document are used for parsing purposes.

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.

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/99710
X-Force Vulnerability Database: http://xforce.iss.net/xforce/xfdb/99703
X-Force Vulnerability Database: http://xforce.iss.net/xforce/xfdb/99705
X-Force Vulnerability Database: http://xforce.iss.net/xforce/xfdb/99709
X-Force Vulnerability Database: http://xforce.iss.net/xforce/xfdb/99707
X-Force Vulnerability Database: http://xforce.iss.net/xforce/xfdb/99708 
X-Force Vulnerability Database: http://xforce.iss.net/xforce/xfdb/99704
CVE-2014-3570 : https://vulners.com/cve/CVE-2014-3570
CVE-2014-3571 : https://vulners.com/cve/CVE-2014-3571
CVE-2014-3572 : https://vulners.com/cve/CVE-2014-3572
CVE-2014-8275 : https://vulners.com/cve/CVE-2014-8275
CVE-2015-0204 : https://vulners.com/cve/CVE-2015-0204
CVE-2015-0205 : https://vulners.com/cve/CVE-2015-0205
CVE-2015-0206 : https://vulners.com/cve/CVE-2015-0206

*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.