IBM SECURITY ADVISORY First Issued: Mon Nov 7 10:35:13 CST 2016 The most recent version of this document is available here: http://aix.software.ibm.com/aix/efixes/security/lquerylv_advisory.asc https://aix.software.ibm.com/aix/efixes/security/lquerylv_advisory.asc ftp://aix.software.ibm.com/aix/efixes/security/lquerylv_advisory.asc Security Bulletin: Vulnerability in lquerylv in LVM impacts AIX (CVE-2016-6079) =============================================================================== SUMMARY: There is a vulnerability in lquerylv in LVM that impacts AIX. =============================================================================== VULNERABILITY DETAILS: CVEID: CVE-2016-6079 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6079 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6079 DESCRIPTION: AIX contains an unspecified vulnerability that would allow a locally authenticated user to obtain root level privileges. CVSS Base Score: 9.8 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/117554 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) AFFECTED PRODUCTS AND VERSIONS: AIX 5.3, 6.1, 7.1, 7.2 VIOS 2.2.x The following fileset levels are vulnerable: key_fileset = aix Fileset Lower Level Upper Level KEY --------------------------------------------------------- bos.rte.lvm 5.3.12.0 5.3.12.8 key_w_fs bos.rte.lvm 6.1.9.0 6.1.9.101 key_w_fs bos.rte.lvm 7.1.3.0 7.1.3.47 key_w_fs bos.rte.lvm 7.1.4.0 7.1.4.1 key_w_fs bos.rte.lvm 7.2.0.0 7.2.0.1 key_w_fs Note: To find out whether the affected filesets are installed on your systems, refer to the lslpp command found in the AIX user's guide. Example: lslpp -L | grep -i bos.rte.lvm REMEDIATION: A. APARS IBM has assigned the following APARs to this problem: AIX Level APAR Availability SP KEY ------------------------------------------------ 5.3.12 IV88658 N/A key_w_apar 6.1.9 IV87981 11/11/16 SP8 key_w_apar 7.1.3 IV88419 1/27/17 SP8 key_w_apar 7.1.4 IV87640 11/11/16 SP3 key_w_apar 7.2.0 IV88053 1/27/17 SP3 key_w_apar VIOS Level APAR Availability Release ------------------------------------------ 2.2.3 IV87981 1/27/17 2.2.3.80 2.2.4 IV87981 1/27/17 2.2.4.30 Subscribe to the APARs here: http://www.ibm.com/support/docview.wss?uid=isg1IV87981 http://www.ibm.com/support/docview.wss?uid=isg1IV88419 http://www.ibm.com/support/docview.wss?uid=isg1IV87640 http://www.ibm.com/support/docview.wss?uid=isg1IV88053 https://www.ibm.com/support/docview.wss?uid=isg1IV87981 https://www.ibm.com/support/docview.wss?uid=isg1IV88419 https://www.ibm.com/support/docview.wss?uid=isg1IV87640 https://www.ibm.com/support/docview.wss?uid=isg1IV88053 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 Fixes are available. The fixes can be downloaded via ftp or http from: ftp://aix.software.ibm.com/aix/efixes/security/lquerylv_fix.tar http://aix.software.ibm.com/aix/efixes/security/lquerylv_fix.tar https://aix.software.ibm.com/aix/efixes/security/lquerylv_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. AIX Level Interim Fix (*.Z) KEY ---------------------------------------------- 5.3.12.9 IV88658s9a.160825.epkg.Z key_w_fix 6.1.9.5 IV87981s7a.160825.epkg.Z key_w_fix 6.1.9.6 IV87981s7a.160825.epkg.Z key_w_fix 6.1.9.7 IV87981s7a.160825.epkg.Z key_w_fix 7.1.3.5 IV88419s7a.160825.epkg.Z key_w_fix 7.1.3.6 IV88419s7a.160825.epkg.Z key_w_fix 7.1.3.7 IV88419s7a.160825.epkg.Z key_w_fix 7.1.4.0 IV87640s2a.160825.epkg.Z key_w_fix 7.1.4.1 IV87640s2a.160825.epkg.Z key_w_fix 7.1.4.2 IV87640s2a.160825.epkg.Z key_w_fix 7.2.0.0 IV88053s2a.160825.epkg.Z key_w_fix 7.2.0.1 IV88053s2a.160825.epkg.Z key_w_fix 7.2.0.2 IV88053s2a.160825.epkg.Z key_w_fix Please note that the above table refers to AIX TL/SP level as opposed to fileset level, i.e., 7.1.3.5 is AIX 7100-03-05. VIOS Level Interim Fix (*.Z) KEY ----------------------------------------------- 2.2.3.70 IV87981s7a.160825.epkg.Z key_w_fix 2.2.4.2x IV87981s7a.160825.epkg.Z key_w_fix To extract the fixes from the tar file: tar xvf lquerylv_fix.tar cd lquerylv_fix Verify you have retrieved the fixes intact: The checksums below were generated using the "openssl dgst -sha256 file" command as the following: openssl dgst -sha256 filename KEY ----------------------------------------------------------------------------------------------------- 2f9fce997e69724b73cb52a0dd904a0922145b962bd5468f3833c79b148c451d IV87640s2a.160825.epkg.Z key_w_csum 4c8ffe7944847496c711cf61374706260db1a4c613f601e5a72e4321e056bfb5 IV87981s7a.160825.epkg.Z key_w_csum 76201e9ddb7da21072f6ecea2bdd1dd868c56ad0037e7d6093a5d81dedac7bfe IV88053s2a.160825.epkg.Z key_w_csum c43da2f09864e2dc3749a4b1daceaefcc512dd140c936f6adadf6f358d313241 IV88419s7a.160825.epkg.Z key_w_csum 7b29b92331be294b4e6b2769d29adbd7faffd9e112b402d0f7078750968dd1a2 IV88658s9a.160825.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 AIX Security at security-alert@austin.ibm.com and describe the discrepancy. openssl dgst -sha1 -verify -signature .sig openssl dgst -sha1 -verify -signature .sig Published advisory OpenSSL signature file location: http://aix.software.ibm.com/aix/efixes/security/lquerylv_advisory.asc.sig https://aix.software.ibm.com/aix/efixes/security/lquerylv_advisory.asc.sig ftp://aix.software.ibm.com/aix/efixes/security/lquerylv_advisory.asc.sig C. 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 https://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 https://www.ibm.com/support/mynotifications To view previously issued advisories, please visit: http://www14.software.ibm.com/webapp/set2/subscriptions/onvdq https://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 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 https://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 security-alert@austin.ibm.com you can either: A. Download the key from our web page: http://www.ibm.com/systems/resources/systems_p_os_aix_security_pgppubkey.txt https://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. REFERENCES: Complete CVSS v3 Guide: http://www.first.org/cvss/user-guide https://www.first.org/cvss/user-guide On-line Calculator v3: http://www.first.org/cvss/calculator/3.0 https://www.first.org/cvss/calculator/3.0 ACKNOWLEDGEMENTS: None. CHANGE HISTORY: First Issued: Mon Nov 7 10:35:13 CST 2016 =============================================================================== *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.