27 February 2017
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.0528 K80533167: BIND vulnerability CVE-2017-3135 27 February 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 Products Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Mitigation CVE Names: CVE-2017-3135 CVE-2015-3135 Reference: ASB-2015.0068 ESB-2017.0525 ESB-2015.1815 ESB-2015.1797 Original Bulletin: https://support.f5.com/csp/article/K80533167 - --------------------------BEGIN INCLUDED TEXT-------------------- K80533167: BIND vulnerability CVE-2017-3135 Security Advisory Original Publication Date: Feb 23, 2017 Updated Date: Feb 23, 2017 Vulnerability Description ** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided. (CVE-2015-3135) BIG-IP configurations using DNS64 (the DNS IPv6 to IPv4 option configured in the DNS profile) and Response Policy Zone (RPZ) rewriting (in the BIND configuration) together are affected by this CVE. Note: The DNS IPv6 to IPv4 option is disabled, by default, in the DNS profile. Note: RPZ Rewriting is an optional BIND 9.x configuration that allows administrators to create DNS blacklists. Impact Remote attackers may be able to cause a BIND denial-of-service (DoS) attack by making a query for an AAAA record. Security Issue Status F5 Product Development has assigned ID 643187 (BIG-IP) 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 13.0.0 11.4.1 - 11.4.1 HF7 High BIND 12.0.0 - 12.1.2 11.2.1 11.5.0 - 11.6.1 11.4.1 HF8 and later BIG-IP AAM 13.0.0 11.4.1 - 11.4.1 HF7 High BIND 12.0.0 - 12.1.2 11.5.0 - 11.6.1 11.4.1 HF8 and later BIG-IP AFM 13.0.0 11.4.1 - 11.4.1 HF7 High BIND 12.0.0 - 12.1.2 11.5.0 - 11.6.1 11.4.1 HF8 and later BIG-IP Analytics 13.0.0 11.4.1 - 11.4.1 HF7 High BIND 12.0.0 - 12.1.2 11.2.1 11.5.0 - 11.6.1 11.4.1 HF8 and later BIG-IP APM 13.0.0 11.4.1 - 11.4.1 HF7 High BIND 12.0.0 - 12.1.2 11.2.1 11.5.0 - 11.6.1 11.4.1 HF8 and later BIG-IP ASM 13.0.0 11.4.1 - 11.4.1 HF7 High BIND 12.0.0 - 12.1.2 11.2.1 11.5.0 - 11.6.1 11.4.1 HF8 and later BIG-IP DNS 13.0.0 None High BIND 12.0.0 - 12.1.2 BIG-IP Edge Gateway None 11.2.1 Not vulnerable None BIG-IP GTM 11.5.0 - 11.6.1 11.4.1 - 11.4.1 HF7 High BIND 11.4.1 HF8 and later 11.2.1 BIG-IP Link Controller 13.0.0 11.4.1 - 11.4.1 HF7 High BIND 12.0.0 - 12.1.2 11.2.1 11.5.0 - 11.6.1 11.4.1 HF8 and later BIG-IP PEM 13.0.0 11.4.1 - 11.4.1 HF7 High BIND 12.0.0 - 12.1.2 11.5.0 - 11.6.1 11.4.1 HF8 and later BIG-IP PSM 11.4.1 HF8 and later 11.4.1 - 11.4.1 HF7 High BIND BIG-IP WebAccelerator None 11.2.1 Not vulnerable None BIG-IP WebSafe 13.0.0 None High BIND 12.0.0 - 12.1.2 11.6.0 - 11.6.1 ARX None 6.2.0 - 6.4.0 Not vulnerable None Enterprise Manager None 3.1.1 Not vulnerable1 None BIG-IQ Cloud None 4.0.0 - 4.5.0 Not vulnerable1 None BIG-IQ Device None 4.2.0 - 4.5.0 Not vulnerable1 None BIG-IQ Security None 4.0.0 - 4.5.0 Not vulnerable1 None BIG-IQ ADC None 4.5.0 Not vulnerable1 None BIG-IQ Centralized Management None 5.0.0 - 5.1.0 Not vulnerable1 None 4.6.0 BIG-IQ Cloud and Orchestration None 1.0.0 Not vulnerable1 None F5 iWorkflow None 2.0.0 - 2.0.2 Not vulnerable1 None LineRate None 2.5.0 - 2.6.1 Not vulnerable None Traffix SDC None 5.0.0 - 5.1.0 Not vulnerable None 4.0.0 - 4.4.0 1 The specified products contain the affected code. However, F5 identifies the vulnerability status as Not vulnerable because the attacker cannot exploit the code in default, standard, or recommended configurations. 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 To mitigate this vulnerability, you can disable the DNS Ipv6 to IPv4 option in the DNS profile, or disable RPZ in the BIND configuration. To disable the DNS IPv6 to IPv4 option in the DNS profile, perform the following procedure: Impact of action: The BIG-IP system does not map IPv4 addresses to IPv6 addresses for DNS resolutions. Log in to the BIG-IP Configuration utility. Navigate to DNS > Delivery > Profiles > DNS. Click the name of the affected DNS profile. For the DNS IPv6 to IPv4 option, select Disabled. Click Update. Alternatively, if you have manually enabled RPZ in the BIND configuration, you can disable RPZ. Supplemental Information For more information about RPZ, refer to the following Internet Systems Consortium articles: Response Policy Zones Building DNS Firewalls with Response Policy Zones (RPZ) The previous links take you to a resource outside of AskF5, and it is possible that the information may be removed without our knowledge. K21520582: Overview of the DNS profile K9970: Subscribing to email notifications regarding F5 products K9957: Creating a custom RSS feed to view new and updated documents K4602: Overview of the F5 security vulnerability response policy K4918: Overview of the F5 critical issue hotfix policy K167: Downloading software and firmware from F5 K13123: Managing BIG-IP product hotfixes (11.x - 12.x) K9502: BIG-IP 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 firstname.lastname@example.org and we will forward your request to the appropriate person. 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