Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.3207 Patch for OpenSSL in AIX 15 December 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: openssl Publisher: IBM Operating System: AIX Impact/Access: Provide Misleading Information -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-3735 Original Bulletin: http://aix.software.ibm.com/aix/efixes/security/openssl_advisory24.asc - --------------------------BEGIN INCLUDED TEXT-------------------- IBM SECURITY ADVISORY First Issued: Thu Dec 14 14:57:00 CST 2017 The most recent version of this document is available here: http://aix.software.ibm.com/aix/efixes/security/openssl_advisory24.asc https://aix.software.ibm.com/aix/efixes/security/openssl_advisory24.asc ftp://aix.software.ibm.com/aix/efixes/security/openssl_advisory24.asc Security Bulletin: Vulnerability in OpenSSL affects AIX (CVE-2017-3735) =============================================================================== SUMMARY: There is a vulnerability in OpenSSL used by AIX. =============================================================================== VULNERABILITY DETAILS: CVEID: CVE-2017-3735 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-3735 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-3735 DESCRIPTION: If an X.509 certificate has a malformed IPAddressFamily extension, OpenSSL could do a one-byte buffer overread. The most likely result could be an erroneous display of the certificate in text format. CVSS Base Score: 5.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/131047 for the current score CVSS Environmental Score*: Undefined CVSS Vector:(CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) 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 = osrcaix Fileset Lower Level Upper Level KEY ------------------------------------------------------ openssl.base 1.0.2.500 1.0.2.1100 key_w_fs openssl.base 20.13.102.1000 20.13.102.1100 key_w_fs Note: A. 0.9.8, 1.0.1 OpenSSL versions are out-of-support. Customers are advised to upgrade to currently supported OpenSSL 1.0.2 version. B. Latest level of OpenSSL fileset is available from the web download site: https://www14.software.ibm.com/webapp/iwm/web/reg/download.do?source=aixbp&lang=en_US&S_PKG=openssl&cp=UTF-8 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 openssl.base REMEDIATION: FIXES A fix is available, and it can be downloaded from https://www14.software.ibm.com/webapp/iwm/web/reg/download.do?source=aixbp&lang=en_US&S_PKG=openssl&cp=UTF-8 To extract the fixes from the tar file: For Openssl 1.0.2m version - zcat openssl-1.0.2.1300.tar.Z | tar xvf For Openssl fips 1.0.2m version - zcat openssl-20.13.102.1300.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. Note that all the previously reported security vulnerability fixes are also included in above mentioned fileset level. Please refer to the readme file (provided along with the fileset) for the complete list of vulnerabilities fixed. To preview the fix installation: installp -apYd . openssl To install the fix package: installp -aXYd . openssl Published advisory OpenSSL signature file location: ftp://aix.software.ibm.com/aix/efixes/security/openssl_advisory24.asc.sig http://aix.software.ibm.com/aix/efixes/security/openssl_advisory24.asc.sig https://aix.software.ibm.com/aix/efixes/security/openssl_advisory24.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] 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 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: 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 : 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: Thu Dec 14 14:57:00 CST 2017 =============================================================================== *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. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBWjNiCYx+lLeg9Ub1AQg10A//fioazMjq6Ytp/akkHNnDyH4CCSiWULI7 WA/oQg/qBEFs70shFtBUpjNVxaO2HgOemWu3+/v8O+5rxCrIj7dN8AQ4wMcVqgza iY3ezIY76hV9223P7zNGZfjY52GlTVO5Gt8ir45Ww671rHFahQKNe0JkovNk6gSF 40/74H0JqanD5ZiUMbU5B+S/3CwIBWFNBI5bdWXPHBeQxea1o15PaTviBAg5ptUP AlfRgwIiM6iu7kuljaIpymCHCZUWfVpP4QfZR3oO5a3ocwGDjy3Fz1EwPKqC+Txq VcKN9JlnOZcynJ+5ludUv3/E//O3hvTvzh+k26sYNqFNkjPWpPYNW0/z/36TNjlW /DipvLb6kGte4Q5ADNDed++Tc9C173Z9sMti43AnlCVqcU4TQS4i+IU9QQD6sf5W UvvqEiiXYWnyAOnxwm4897qT7zuFfCO3i56c1+AvDJlGPOQDNsqkgTIzLU1ePssK 5xGNjvVaRz10kb4FMN3zwrTLkkfcJ9VhSDA1tMx96Y78tU3siW7iXZvzAfq8gW7M c1LIitZPkcnnoToLUyCRYpQAnfhF7DGgri6vBgaD6vFiSddk9YmfSVg2F9ZApxe1 Vf81wFo7HNT8CbMGtrRUFmXjlCyxa1qhkdtQYO3WAFakE6VJeJYmtOfX16CW5P3w 0YPjbE6w/jc= =+YEJ -----END PGP SIGNATURE-----