Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.1300 SOL15439022: glibc vulnerability CVE-2016-3075 24 May 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 BIG-IP products F5 ARX F5 BIG-IQ products Publisher: F5 Networks Operating System: Network Appliance Virtualisation Linux variants Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Mitigation CVE Names: CVE-2016-3075 Original Bulletin: https://support.f5.com/kb/en-us/solutions/public/k/15/sol15439022.html - --------------------------BEGIN INCLUDED TEXT-------------------- SOL15439022: glibc vulnerability CVE-2016-3075 Security Advisory Original Publication Date: 05/23/2016 Updated Date: 05/23/2016 Vulnerability Description A stack overflow vulnerability (unbounded allocation) in _nss_dns_getnetbyname_r function was found. (CVE-2016-3075) Impact BIG-IP, BIG-IQ, and Enterprise Manager While the functionality in question is included with BIG-IP, BIG-IQ, and Enterprise Manager, these products are not vulnerable in a default or standard configuration because the function is never utilized. This vulnerability can only be exploited if you enable DNS for networks in the Name Service Switch configuration file (/etc/nsswitch.conf) or utilize the function in question by means of an Extended Content Verification (ECV) monitor or custom binary. ARX This vulnerability can be exposed if DNS for networks is enabled in the Name Service Switch configuration. Security Issue Status F5 Product Development has assigned ID 587756 (BIG-IP), ID 588204 (BIG-IQ), ID 588208 (Enterprise Manager), and ID 476571 (ARX) 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 12.0.0 - 12.1.0 None Low glibc 11.0.0 - 11.6.1 10.1.0 - 10.2.4 BIG-IP AAM 12.0.0 - 12.1.0 None Low glibc 11.4.0 - 11.6.1 BIG-IP AFM 12.0.0 - 12.1.0 None Low glibc 11.3.0 - 11.6.1 BIG-IP Analytics 12.0.0 - 12.1.0 None Low glibc 11.0.0 - 11.6.1 BIG-IP APM 12.0.0 - 12.1.0 None Low glibc 11.0.0 - 11.6.1 10.1.0 - 10.2.4 BIG-IP ASM 12.0.0 - 12.1.0 None Low glibc 11.0.0 - 11.6.1 10.1.0 - 10.2.4 BIG-IP DNS 12.0.0 - 12.1.0 None Low glibc BIG-IP Edge Gateway 11.0.0 - 11.3.0 None Low glibc 10.1.0 - 10.2.4 BIG-IP GTM 11.0.0 - 11.6.1 None Low glibc 10.1.0 - 10.2.4 BIG-IP Link Controller 12.0.0 - 12.1.0 None Low glibc 11.0.0 - 11.6.1 10.1.0 - 10.2.4 BIG-IP PEM 12.0.0 - 12.1.0 None Low glibc 11.3.0 - 11.6.1 BIG-IP PSM 11.0.0 - 11.4.1 None Low glibc 10.1.0 - 10.2.4 BIG-IP WebAccelerator 11.0.0 - 11.3.0 None Low glibc 10.1.0 - 10.2.4 BIG-IP WOM 11.0.0 - 11.3.0 None Low glibc 10.1.0 - 10.2.4 ARX 6.0.0 - 6.4.0 None Low glibc Enterprise Manager 3.0.0 - 3.1.1 None Low glibc FirePass None 7.0.0 Not vulnerable None 6.0.0 - 6.1.0 BIG-IQ Cloud 4.0.0 - 4.5.0 None Low glibc BIG-IQ Device 4.2.0 - 4.5.0 None Low glibc BIG-IQ Security 4.0.0 - 4.5.0 None Low glibc BIG-IQ ADC 4.5.0 None Low glibc BIG-IQ Centralized 4.6.0 None Low glibc Management BIG-IQ Cloud and 1.0.0 None Low glibc Orchestration 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. BIG-IP, BIG-IQ, and Enterprise Manager To mitigate this vulnerability for BIG-IP, BIG-IQ, and Enterprise Manager, you can remove reference to the vulnerable function in any configured ECV monitors and disable DNS for networks in the /etc/nsswitch.conf file. In addition, you should permit access to F5 products only over a secure network, and limit login access to trusted users. For more information, refer to SOL13092: Overview of securing access to the BIG-IP system. ARX To mitigate this vulnerability for ARX, you can disable DNS for networks in the Name Service Switch configuration. 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) SOL10025: Managing BIG-IP product hotfixes (10.x) SOL9502: BIG-IP hotfix matrix SOL15106: Managing BIG-IQ product hotfixes SOL15113: BIG-IQ hotfix matrix SOL12766: ARX hotfix matrix - --------------------------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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBV0PYYX6ZAP0PgtI9AQKgoxAAsoMztM8HkrPCbLYfiZVV4+hiSjnfgU/e bFYTVbiwkUc1h6HmKJe7/o2L/FYWjGf2YJDSKb0/029mZvtRhJsx8oFFZMaDv5uz UXAGp4SmZRErpIzJ9delnc+X+fAm7b7MXzUH5TQGOl6QP7CAtLkLBDp8zZ2YslYz bVH4jvJyiCl2Nk83j8tKBkowcedhaFpACnLMS4L+w+5LWQRfqjs6pRgFHAFDYvM0 nQ/DzzTJr6eyJF+RXVbiZAG74o1Tvvzd7RJmuGYQXZ5PE/BIje7S0P+AxcxvHnwm oyBEoXyJiOdCXukjUBPtU39+Db9GGbFiME+X+tkdwjtv9Lf0Wz3q7BV79OPt5f4B 0AnMivV3YMvkb+pxb4tsMgS6gSNiQgH56OBOpZ8n7mh9wNkJ8yFR3/JsHFZWtst3 57bAXaLNU6HRAVPcIR9o+ADHXgqO9Z9CM8nvHIEJ27NZxFzb0qWYUIPH8QjBGqUv eAcPh2pYAHkpyHm44eamPPPjK8/TBv/I1Wyp1gCIhm/R74qtorTnm87lrbRkPHfr gHqGaQWL9Wt0bI8dvqkHmmZILAg/4yGJQraC94zT28cnvU4372EiI+cI/EtPEqjD /kAxqQo6/nbO1Kk3b4Yo0eMfoL7X33PHsjUFgH7VkABiNXnfMRJv6mhjX0wVG+N6 5TepEv/l928= =UzHe -----END PGP SIGNATURE-----