IBM has released updated AIX and VIOS fixes for CVE-2017-5715 known as Spectre that are only applicable to some POWER9 systems.,IBM has released updated VIOS and VIOS fixes for CVE-2017-5715 known as Spectre that are only applicable to some POWER9 systems.

IBM SECURITY ADVISORY

First Issued: Fri Aug 17 08:05:01 CDT 2018
|Updated: Mon Sep 24 08:59:02 CDT 2018
|Update: Added system model 9080-M9S as a system to which the bulletin
| applies.

The most recent version of this document is available here:
http://aix.software.ibm.com/aix/efixes/security/spectre_update_advisory.asc
https://aix.software.ibm.com/aix/efixes/security/spectre_update_advisory.asc
ftp://aix.software.ibm.com/aix/efixes/security/spectre_update_advisory.asc

Security Bulletin: IBM has released updated AIX and VIOS fixes for
CVE-2017-5715, known as Spectre, that are only applicable to some POWER9
systems.

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

SUMMARY:

IBM has released updated AIX and VIOS fixes for CVE-2017-5715, known as 
Spectre, that are only applicable to the following POWER9 systems:

9040-MR9

| 9080-M9S

The prtconf command may be used to find the system model number.
For example:  prtconf | grep "System Model"

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

VULNERABILITY DETAILS:

CVEID: CVE-2017-5715
    https://vulners.com/cve/CVE-2017-5715
    https://vulners.com/cve/CVE-2017-5715


AFFECTED PRODUCTS AND VERSIONS:

    AIX 6.1, 7.1, 7.2
    VIOS 2.2.x 

    The vulnerabilities in the following filesets are being addressed:
    
    key_fileset = aix

    Fileset                 Lower Level  Upper Level KEY 
    ---------------------------------------------------------
    bos.mp64                6.1.9.0      6.1.9.316   key_w_fs
    bos.mp64                7.1.4.0      7.1.4.34    key_w_fs
    bos.mp64                7.1.5.0      7.1.5.16    key_w_fs
    bos.mp64                7.2.1.0      7.2.1.5     key_w_fs
    bos.mp64                7.2.2.0      7.2.2.16    key_w_fs
    
    To find out whether the affected filesets are installed 
    on your systems, refer to the lslpp command found in AIX user's guide.

    Example:  lslpp -L | grep -i bos.mp64


REMEDIATION:

    A. APARS
        
        IBM has assigned the following APARs to this problem:

        AIX Level APAR     Availability  SP   KEY
        ------------------------------------------------
        6.1.9     IJ07498  **            SP12 key_w_apar
        7.1.4     IJ07499  **            SP7  key_w_apar
        7.1.5     IJ07500  **            SP3  key_w_apar
        7.2.1     IJ07501  **            SP5  key_w_apar
        7.2.2     IJ07497  **            SP3  key_w_apar

        VIOS Level APAR    Availability  SP       KEY
        ----------------------------------------------------
        2.2.4      IJ07498 **            N/A      key_w_apar
        2.2.5      IJ07498 **            2.2.5.50 key_w_apar
        2.2.6      IJ07498 **            2.2.6.23 key_w_apar

        The relevant APARs will also be included in 7.1.5 and
        7.2.2 SPs with a build id of 1832 or later.

        Subscribe to the APARs here:

        http://www.ibm.com/support/docview.wss?uid=isg1IJ07497
        http://www.ibm.com/support/docview.wss?uid=isg1IJ07498
        http://www.ibm.com/support/docview.wss?uid=isg1IJ07499
        http://www.ibm.com/support/docview.wss?uid=isg1IJ07500
        http://www.ibm.com/support/docview.wss?uid=isg1IJ07501

        https://www.ibm.com/support/docview.wss?uid=isg1IJ07497
        https://www.ibm.com/support/docview.wss?uid=isg1IJ07498
        https://www.ibm.com/support/docview.wss?uid=isg1IJ07499
        https://www.ibm.com/support/docview.wss?uid=isg1IJ07500
        https://www.ibm.com/support/docview.wss?uid=isg1IJ07501

        By subscribing, you will receive periodic email alerting you
        to the status of the APAR, and a link to download the fix once
        it becomes available.

    B. FIXES

        AIX and VIOS fixes are available.

        An LPAR system reboot is required to complete the iFix installation,
        or Live Update may be used on AIX 7.2 to avoid a reboot.

        The AIX and VIOS fixes can be downloaded via ftp or http from:

        ftp://aix.software.ibm.com/aix/efixes/security/spectre_update_fix.tar
        http://aix.software.ibm.com/aix/efixes/security/spectre_update_fix.tar
        https://aix.software.ibm.com/aix/efixes/security/spectre_update_fix.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
        Technology Levels.

        The provided fixes are cumulative and include the previously issued
        Spectre and Meltdown (CVE-2017-5715, CVE-2017-5753, and CVE-2017-5754) 
        security fixes:
        http://aix.software.ibm.com/aix/efixes/security/spectre_meltdown_advisory.asc
        and Variant 4 (CVE-2018-3639) security fixes:
        http://aix.software.ibm.com/aix/efixes/security/variant4_advisory.asc
        
        AIX Level  Interim Fix (*.Z)         KEY
        ----------------------------------------------
        6.1.9.9    IJ07498m9a.180726.epkg.Z  key_w_fix
        6.1.9.10   IJ07498mAa.180717.epkg.Z  key_w_fix
        6.1.9.11   IJ07498mBa.180713.epkg.Z  key_w_fix
        7.1.4.4    IJ07499m4a.180719.epkg.Z  key_w_fix
        7.1.4.5    IJ07499m5a.180809.epkg.Z  key_w_fix
        7.1.4.6    IJ07499m6a.180713.epkg.Z  key_w_fix
        7.1.5.1    IJ07500m1a.180718.epkg.Z  key_w_fix
        7.1.5.2    IJ07500m2a.180713.epkg.Z  key_w_fix
        7.2.1.2    IJ07501m2a.180719.epkg.Z  key_w_fix
        7.2.1.3    IJ07501m3a.180717.epkg.Z  key_w_fix
        7.2.1.4    IJ07501m4a.180716.epkg.Z  key_w_fix
        7.2.2.1    IJ07497m1a.180717.epkg.Z  key_w_fix
        7.2.2.2    IJ07497m2a.180713.epkg.Z  key_w_fix

        Please note that the above table refers to AIX TL/SP level as
        opposed to fileset level, i.e., 7.2.2.1 is AIX 7200-02-01.

        The provided iFixes for 7.1.5.2 and 7.2.2.2 are not required on SPs 
        with a build id of 1832 or later. Please run "oslevel -s" to view 
        installed build id.

        Please reference the Affected Products and Version section above
        for help with checking installed fileset levels.

        VIOS Level  Interim Fix (*.Z)         KEY
        -----------------------------------------------
        2.2.4.40    IJ07498m9a.180726.epkg.Z  key_w_fix
        2.2.4.50    IJ07498m9b.180726.epkg.Z  key_w_fix
        2.2.4.60    IJ07498mBa.180713.epkg.Z  key_w_fix
        2.2.5.20    IJ07498m9a.180726.epkg.Z  key_w_fix
        2.2.5.30    IJ07498m9b.180726.epkg.Z  key_w_fix
        2.2.5.40    IJ07498mBa.180713.epkg.Z  key_w_fix
        2.2.6.0     IJ07498mAa.180717.epkg.Z  key_w_fix
        2.2.6.10    IJ07498mAa.180717.epkg.Z  key_w_fix
        2.2.6.20    IJ07498mBa.180713.epkg.Z  key_w_fix
        2.2.6.21    IJ07498mBa.180713.epkg.Z  key_w_fix

        To extract the fixes from the tar file:

        tar xvf spectre_update_fix.tar
        cd spectre_update_fix

        Verify you have retrieved the fixes intact:

        The checksums below were generated using the
        "openssl dgst -sha256 [filename]" command as the following:

        openssl dgst -sha256                                              filename                 KEY
        -----------------------------------------------------------------------------------------------------
        8130c2fe38bc00ec0ffc40fb0ba807c576774255640ac91c3cf544a5186969e5  IJ07497m1a.180717.epkg.Z key_w_csum
        489aa881e49d63814160bf9b685a8a55c667bb4f1ec8afb4134393a5a3d06093  IJ07497m2a.180713.epkg.Z key_w_csum
        a97311134ec01ca205e0121576b05143b15718f2c3196dad08185b0ff56ff8dc  IJ07498m9a.180726.epkg.Z key_w_csum
        c34866b7148bfd7eacf203d3fd038f6edc138330b9329222ca1f884d22e74fa0  IJ07498m9b.180726.epkg.Z key_w_csum
        a3033670dcd28502594243789d646edc036c89c549b80e9b41468ec688222195  IJ07498mAa.180717.epkg.Z key_w_csum
        4dc17657d5d7ccf59876cd9e60a041ab45495e683e46bca0e6a978143d9f9b04  IJ07498mBa.180713.epkg.Z key_w_csum
        8e5df1d36261b795985d6da09549cc4b2b7f09a57352a8aa2990a2e65b6ef0cf  IJ07499m4a.180719.epkg.Z key_w_csum
        6d7e31ce2db7c26b0095258fb0e7067cdb5eea6815f2ed89e7df5db2f888fd15  IJ07499m5a.180809.epkg.Z key_w_csum
        19e901819690cc66094a50a69b89874db2f7dd622f2b20342434a73c06b0d813  IJ07499m6a.180713.epkg.Z key_w_csum
        c0a9110911d9f030e9a8da174d19bd25e25dfc748689908d460d7b6da3c0f96b  IJ07500m1a.180718.epkg.Z key_w_csum
        79328878b1463a849ba402ec94c5dabe84d23b1d68e1bb2003bfad2cf91c7bca  IJ07500m2a.180713.epkg.Z key_w_csum
        dd2c1125dcd39242eae5e8c599099be65530b477964157f677f824e5bb748ee0  IJ07501m2a.180719.epkg.Z key_w_csum
        0f85af1fb54a8f3b948283a994a024471c6613a4f5375d2c9105704adf448b4e  IJ07501m3a.180717.epkg.Z key_w_csum
        dd9c82da0afe7cc6cd2dedf241dde09c94d92307aff8372fd4bd352e1b353221  IJ07501m4a.180716.epkg.Z key_w_csum

        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 Support at
        http://ibm.com/support/ and describe the discrepancy.         

        openssl dgst -sha1 -verify [pubkey_file] -signature [advisory_file].sig [advisory_file]

        openssl dgst -sha1 -verify [pubkey_file] -signature [ifix_file].sig [ifix_file]

        Published advisory OpenSSL signature file location:

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

    C. FIX AND INTERIM FIX INSTALLATION

        An LPAR system reboot is required to complete the iFix installation,
        or Live Update may be used on AIX 7.2 to avoid a reboot.

        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.

WORKAROUNDS AND MITIGATIONS:

    None.

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

CONTACT US:

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

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

Contact IBM Support for questions related to this announcement:

    http://ibm.com/support/
    https://ibm.com/support/

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

    Download the key from our web page:

ftp://ftp.software.ibm.com/systems/power/AIX/systems_p_os_aix_security_pubkey.txt

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

REFERENCES:

Complete CVSS v3 Guide:  http://www.first.org/cvss/user-guide
On-line Calculator v3:
    http://www.first.org/cvss/calculator/3.0

RELATED INFORMATION:

IBM Secure Engineering Web Portal
    http://www.ibm.com/security/secure-engineering/bulletins.html

IBM Product Security Incident Response Blog
    https://www.ibm.com/blogs/psirt/

IBM PSIRT Blog - Potential Impact on Processors in the Power Family
    https://www.ibm.com/blogs/psirt/potential-impact-processors-power-family/

Security Bulletin: IBM has released updated AIX and VIOS fixes for 
CVE-2017-5715, known as Spectre, that are only applicable to some POWER9 
systems.
    https://www-01.ibm.com/support/docview.wss?uid=ibm10719541

ACKNOWLEDGEMENTS:

The vulnerability was reported to IBM by Google Project Zero.

CHANGE HISTORY:

First Issued: Fri Aug 17 08:05:01 CDT 2018

| Updated: Mon Sep 24 08:59:02 CDT 2018
| Update: Added system model 9080-M9S as a system to which the bulletin
| applies.

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

*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.