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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.2552 SOL23512141: OpenSSL vulnerability CVE-2016-2179 1 November 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 products Publisher: F5 Networks Operating System: Network Appliance Virtualisation Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-2179 Reference: ASB-2016.0098 ASB-2016.0095 ESB-2016.2238 Original Bulletin: https://support.f5.com/kb/en-us/solutions/public/k/23/sol23512141.html - --------------------------BEGIN INCLUDED TEXT-------------------- SOL23512141: OpenSSL vulnerability CVE-2016-2179 Security Advisory Original Publication Date: 10/31/2016 Vulnerability Description The DTLS implementation in OpenSSL before 1.1.0 does not properly restrict the lifetime of queue entries associated with unused out-of-order messages, which allows remote attackers to cause a denial of service (memory consumption) by maintaining many crafted DTLS sessions simultaneously, related to d1_lib.c, statem_dtls.c, statem_lib.c, and statem_srvr.c. (CVE-2016-2179) Impact An attacker can send a fragmented, incomplete message followed by a 'retransmission' message. In this case, the system accepts the retransmission message but the queue retains the original fragments, which consumes system resources. By repeating this process many times, the attacker can cause resource exhaustion. Security Issue Status F5 Product Development has assigned IDs 625372, 625377, and 625392 (BIG-IP) and ID 410742 (ARX) to this vulnerability. To determine if your release is known to be vulnerable, the components or features that are affected by the vulnerability, and for information about releases or hotfixes that address the vulnerability, refer to the following table: Product Versions known to be vulnerable Versions known to be not vulnerable Severity Vulnerable component or feature BIG-IP LTM 11.2.1 12.0.0 - 12.1.1 Medium Data plane: UDP virtual servers using SSL profiles 10.2.1 - 10.2.4 11.4.0 - 11.6.1 12.0.0 - 12.1.1 11.2.1 - 11.4.1 Medium Control plane: sod process, iAppsLX[1] 11.5.0 - 11.6.1 10.2.1 - 10.2.4 BIG-IP AAM 12.0.0 - 12.1.1 11.4.0 - 11.4.1 Medium Control plane: sod process, iAppsLX[1] 11.5.0 - 11.6.1 BIG-IP AFM 12.0.0 - 12.1.1 11.4.0 - 11.4.1 Medium Control plane: sod process, iAppsLX[1] 11.5.0 - 11.6.1 BIG-IP Analytics 11.2.1 12.0.0 - 12.1.1 Medium Data plane: UDP virtual servers using SSL profiles 11.4.0 - 11.6.1 12.0.0 - 12.1.1 11.2.1 - 11.4.1 Medium Control plane: sod process, iAppsLX[1] 11.5.0 - 11.6.1 BIG-IP APM 11.2.1 12.0.0 - 12.1.1 Medium Data plane: UDP virtual servers using SSL profiles 10.2.1 - 10.2.4 11.4.0 - 11.6.1 12.0.0 - 12.1.1 11.2.1 - 11.4.1 Medium Control plane: sod process, iAppsLX[1] 11.5.0 - 11.6.1 10.2.1 - 10.2.4 BIG-IP ASM 11.2.1 12.0.0 - 12.1.1 Medium Data plane: UDP virtual servers using SSL profiles 10.2.1 - 10.2.4 11.4.0 - 11.6.1 12.0.0 - 12.1.1 11.2.1 - 11.4.1 Medium Control plane: sod process, iAppsLX[1] 11.5.0 - 11.6.1 10.2.1 - 10.2.4 BIG-IP DNS 12.0.0 - 12.1.1 None Medium Control plane: sod process, iAppsLX[1] BIG-IP Edge Gateway 11.2.1 None Medium Data plane: UDP virtual servers using SSL profiles 10.2.1 - 10.2.4 BIG-IP GTM 11.2.1 11.4.0 - 11.6.1 Medium Data plane: UDP virtual servers using SSL profiles 10.2.1 - 10.2.4 11.5.0 - 11.6.1 11.2.1 - 11.4.1 Medium Control plane: sod process, iAppsLX[1] 10.2.1 - 10.2.4 BIG-IP Link Controller 11.2.1 12.0.0 - 12.1.1 Medium Data plane: UDP virtual servers using SSL profiles 10.2.1 - 10.2.4 11.4.0 - 11.6.1 12.0.0 - 12.1.1 11.2.1 - 11.4.1 Medium Control plane: sod process, iAppsLX[1] 11.5.0 - 11.6.1 10.2.1 - 10.2.4 BIG-IP PEM 12.0.0 - 12.1.1 11.4.0 - 11.4.1 Medium Control plane: sod process, iAppsLX[1] 11.5.0 - 11.6.1 BIG-IP PSM 11.2.1 11.4.0 - 11.4.1 Medium Data plane: UDP virtual servers using SSL profiles 10.2.1 - 10.2.4 BIG-IP WebAccelerator 11.2.1 None Medium Data plane: UDP virtual servers using SSL profiles 10.2.1 - 10.2.4 BIG-IP WebSafe 12.0.0 - 12.1.0 None Medium Control plane: sod process, iAppsLX[1] 11.6.0 - 11.6.1 ARX 6.2.0 - 6.4.0 None Low OpenSSL Enterprise Manager None 3.1.1 Not vulnerable None BIG-IQ Cloud None 4.0.0 - 4.5.0 Not vulnerable None BIG-IQ Device None 4.2.0 - 4.5.0 Not vulnerable None BIG-IQ Security None 4.0.0 - 4.5.0 Not vulnerable None BIG-IQ ADC None 4.5.0 Not vulnerable None BIG-IQ Centralized None 5.0.0 - 5.1.0 Not vulnerable None Management 4.6.0 BIG-IQ Cloud and None 1.0.0 Not vulnerable None Orchestration F5 iWorkflow None 2.0.0 - 2.0.1 Not vulnerable None LineRate None 2.5.0 - 2.6.1 Not vulnerable None Traffix SDC None 5.0.0 Not vulnerable None 4.0.0 - 4.4.0 1 iAppsLX is not vulnerable in default configurations. However, iAppsLX systems that are customized to enable Datagram Transport Layer Security (DTLS) may be vulnerable. Vulnerability Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Versions known to be not vulnerable column. If the table lists only an older version than what you are currently running, or does not list a non-vulnerable version, then no upgrade candidate currently exists. Mitigation None Supplemental Information SOL9970: Subscribing to email notifications regarding F5 products SOL9957: Creating a custom RSS feed to view new and updated documents SOL4602: Overview of the F5 security vulnerability response policy SOL4918: Overview of the F5 critical issue hotfix policy - --------------------------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: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== 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). 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