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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.1428 sol48042976: BIG-IP SSL vulnerability CVE-2016-4545 7 June 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 BIG-IP products Publisher: F5 Networks Operating System: Network Appliance Virtualisation Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-4545 Original Bulletin: https://support.f5.com/kb/en-us/solutions/public/k/48/sol48042976.html - --------------------------BEGIN INCLUDED TEXT-------------------- sol48042976: BIG-IP SSL vulnerability CVE-2016-4545 Security Advisory Original Publication Date: 12/16/2015 Updated Date: 06/03/2016 Vulnerability Description On virtual servers with Secure Sockets Layer (SSL) profiles enabled, an SSL alert sent during the handshake may produce unnecessary logging and resource consumption on a BIG-IP system that is running 11.5.4 FINAL, possibly causing the Traffic Management Microkernel (TMM) to restart and produce a core file. (CVE-2016-4545) Impact When a Secure Sockets Layer (SSL) alert is sent during the handshake on a BIG-IP 11.5.4 base, the TMM may restart and produce a core file while logging SSL 'codec alert' messages to the /var/log/ltm file. The messages appear similar to the following example: warning tmm[32354]: 01260009:4: Connection error: hud_ssl_handler:1131: codec alert (20) Security Issue Status F5 Product Development has assigned ID 518275 (BIG-IP) to this vulnerability, and has evaluated the currently supported releases for potential 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 11.5.4 12.0.0 - 12.1.0 High Virtual servers with SSL profile enabled 11.6.0 - 11.6.1 11.5.4 HF1 11.0.0 - 11.5.3 10.2.1 - 10.2.4 BIG-IP AAM 11.5.4 12.0.0 - 12.1.0 High Virtual servers with SSL profile enabled 11.6.0 - 11.6.1 11.5.4 HF1 11.4.0 - 11.5.3 BIG-IP AFM 11.5.4 12.0.0 - 12.1.0 High Virtual servers with SSL profile enabled 11.6.0 - 11.6.1 11.5.4 HF1 11.3.0 - 11.5.3 BIG-IP Analytics 11.5.4 12.0.0 - 12.1.0 High Virtual servers with SSL profile enabled 11.6.0 - 11.6.1 11.5.4 HF1 11.0.0 - 11.5.3 BIG-IP APM 11.5.4 12.0.0 - 12.1.0 High Virtual servers with SSL profile enabled 11.6.0 - 11.6.1 11.5.4 HF1 11.0.0 - 11.5.3 10.2.1 - 10.2.4 BIG-IP ASM 11.5.4 12.0.0 - 12.1.0 High Virtual servers with SSL profile enabled 11.6.0 - 11.6.1 11.5.4 HF1 11.0.0 - 11.5.3 10.2.1 - 10.2.4 BIG-IP DNS None 12.0.0 - 12.1.0 Not vulnerable None BIG-IP Edge Gateway None 11.0.0 - 11.3.0 Not vulnerable None 10.1.0 - 10.2.4 BIG-IP GTM 11.5.4 11.6.0 - 11.6.1 High Virtual servers with SSL profile enabled 11.5.4 HF1 11.0.0 - 11.5.3 10.2.1 - 10.2.4 BIG-IP Link Controller 11.5.4 12.0.0 - 12.1.0 High Virtual servers with SSL profile enabled 11.6.0 - 11.6.1 11.5.4 HF1 11.0.0 - 11.5.3 10.2.1 - 10.2.4 BIG-IP PEM 11.5.4 12.0.0 - 12.1.0 High Virtual servers with SSL profile enabled 11.6.0 - 11.6.1 11.5.4 HF1 11.3.0 - 11.5.3 BIG-IP PSM None 11.0.0 - 11.4.1 Not vulnerable None 10.1.0 - 10.2.4 BIG-IP WebAccelerator None 11.0.0 - 11.3.0 Not vulnerable None 10.1.0 - 10.2.4 BIG-IP WOM None 11.0.0 - 11.3.0 Not vulnerable None 10.1.0 - 10.2.4 ARX None 6.0.0 - 6.4.0 Not vulnerable None Enterprise Manager None 3.0.0 - 3.1.1 Not vulnerable None FirePass None 7.0.0 Not vulnerable None 6.0.0 - 6.1.0 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 Management None 4.6.0 Not vulnerable None BIG-IQ Cloud and Orchestration None 1.0.0 Not vulnerable None LineRate None 2.5.0 - 2.6.1 Not vulnerable None F5 MobileSafe None 1.0.0 Not vulnerable None F5 WebSafe None 1.0.0 Not vulnerable None Traffix SDC None 5.0.0 Not vulnerable None 4.0.0 - 4.4.0 3.3.2 - 3.5.1 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. F5 responds to vulnerabilities in accordance with the Severity values published in the previous table. The Severity values and other security vulnerability parameters are defined in SOL4602: Overview of the F5 security vulnerability response policy. Supplemental Information SOL9970: Subscribing to email notifications regarding F5 products SOL9957: Creating a custom RSS feed to view new and updated documents SOL4918: Overview of the F5 critical issue hotfix policy SOL167: Downloading software and firmware from F5 SOL13123: Managing BIG-IP product hotfixes (11.x - 12.x) - --------------------------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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