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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.3908 K16365: GNU C Library (glibc) vulnerability CVE-2014-9402 18 December 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 BIG-IP Products Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2014-9402 Reference: ESB-2018.3848 ESB-2018.2910 ESB-2018.1091 ESB-2015.0428 Original Bulletin: https://support.f5.com/csp/article/K16365 - --------------------------BEGIN INCLUDED TEXT-------------------- K16365: GNU C Library (glibc) vulnerability CVE-2014-9402 Security Advisory Original Publication Date: Apr 04, 2015 Updated Date: Dec 18, 2018 Security Advisory Description The nss_dns implementation of getnetbyname in GNU C Library (aka glibc) before 2.21, when the DNS backend in the Name Service Switch configuration is enabled, allows remote attackers to cause a denial of service (infinite loop) by sending a positive answer while a network name is being process. (CVE-2014-9402) Impact This vulnerability can only be exploited if you explicitly enable DNS for networks in the Name Service Switch Configuration file (/etc/nsswitch.conf). By default, the BIG-IP system does not have DNS enabled for networks in the Name Service Switch configuration and is not vulnerable. An attacker with local access and knowledge of how to make the glibc function trigger an exploit may be able to cause a denial-of-service (DoS). Security Advisory Status F5 Product Development has assigned ID 510311 (BIG-IP), ID 511756 (Enterprise Manager), ID 511755 (BIG-IQ) and ID 476571 (ARX) to this vulnerability, and has evaluated the currently supported releases for potential vulnerability. Additionally, BIG-IP iHealth may list Heuristic H515699 on the Diagnostics > Identified > High screen. 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. +-----------------+---------------+----------------+----------+---------------+ | |Versions known |Versions known | |Vulnerable | |Product |to be |to be not |Severity |component or | | |vulnerable |vulnerable | |feature | +-----------------+---------------+----------------+----------+---------------+ | |14.0.0 | | | | | |13.0.0 - 13.1.1|14.1.0 | | | |BIG-IP LTM |12.0.0 - 12.1.3| |low |glibc | | |11.0.0 - 11.6.0| | | | | |10.1.0 - 10.2.4| | | | +-----------------+---------------+----------------+----------+---------------+ | |14.0.0 | | | | |BIG-IP AAM |13.0.0 - 13.1.1|14.1.0 |low |glibc | | |12.0.0 - 12.1.3| | | | | |11.4.0 - 11.6.0| | | | +-----------------+---------------+----------------+----------+---------------+ | |14.0.0 | | | | |BIG-IP AFM |13.0.0 - 13.1.1|14.1.0 |low |glibc | | |12.0.0 - 12.1.3| | | | | |11.3.0 - 11.6.0| | | | +-----------------+---------------+----------------+----------+---------------+ | |14.0.0 | | | | |BIG-IP Analytics |13.0.0 - 13.1.1|14.1.0 |low |glibc | | |12.0.0 - 12.1.3| | | | | |11.0.0 - 11.6.0| | | | +-----------------+---------------+----------------+----------+---------------+ | |14.0.0 | | | | | |13.0.0 - 13.1.1| | | | |BIG-IP APM |12.0.0 - 12.1.3|14.1.0 |low |glibc | | |11.0.0 - 11.6.0| | | | | |10.1.0 - 10.2.4| | | | +-----------------+---------------+----------------+----------+---------------+ | |14.0.0 | | | | | |13.0.0 - 13.1.1| | | | |BIG-IP ASM |12.0.0 - 12.1.3|14.1.0 |low |glibc | | |11.0.0 - 11.6.0| | | | | |10.1.0 - 10.2.4| | | | +-----------------+---------------+----------------+----------+---------------+ |BIG-IP Edge |11.0.0 - 11.3.0|None |low |glibc | |Gateway |10.1.0 - 10.2.4| | | | +-----------------+---------------+----------------+----------+---------------+ |BIG-IP GTM |11.0.0 - 11.6.0|None |low |glibc | | |10.1.0 - 10.2.4| | | | +-----------------+---------------+----------------+----------+---------------+ | |14.0.0 | | | | |BIG-IP Link |13.0.0 - 13.1.1| | | | |Controller |12.0.0 - 12.1.3|14.1.0 |low |glibc | | |11.0.0 - 11.6.0| | | | | |10.1.0 - 10.2.4| | | | +-----------------+---------------+----------------+----------+---------------+ | |14.0.0 | | | | |BIG-IP PEM |13.0.0 - 13.1.1|14.1.0 |low |glibc | | |12.0.0 - 12.1.3| | | | | |11.3.0 - 11.6.0| | | | +-----------------+---------------+----------------+----------+---------------+ | |14.0.0 | | | | | |13.0.0 - 13.1.1| | | | |BIG-IP PSM |12.0.0 - 12.1.3|14.1.0 |low |glibc | | |11.0.0 - 11.6.0| | | | | |10.1.0 - 10.2.4| | | | +-----------------+---------------+----------------+----------+---------------+ |BIG-IP |11.0.0 - 11.3.0|None |low |glibc | |WebAccelerator |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 |high |glibc | +-----------------+---------------+----------------+----------+---------------+ |Enterprise |3.0.0 - 3.1.1 |None |low |glibc | |Manager |2.1.0 - 2.3.0 | | | | +-----------------+---------------+----------------+----------+---------------+ |FirePass |None |7.0.0 |Not |None | | | |6.0.0 - 6.1.0 |vulnerable| | +-----------------+---------------+----------------+----------+---------------+ |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 | +-----------------+---------------+----------------+----------+---------------+ |LineRate |None |2.2.0 - 2.5.0 |Not |None | | | |1.6.0 - 1.6.4 |vulnerable| | +-----------------+---------------+----------------+----------+---------------+ |F5 WebSafe |None |1.0.0 |Not |None | | | | |vulnerable| | +-----------------+---------------+----------------+----------+---------------+ |Traffix SDC |None |3.3.2 - 3.5.1 |Not |None | | | |4.0.0 - 4.1.0 |vulnerable| | +-----------------+---------------+----------------+----------+---------------+ |BIG-IP Edge | | |Not | | |Clients for |None |2.0.0 - 2.0.6 |vulnerable|None | |Android | | | | | +-----------------+---------------+----------------+----------+---------------+ |BIG-IP Edge | |2.0.0 - 2.0.4 |Not | | |Clients for Apple|None |1.0.5 - 1.0.6 |vulnerable|None | |iOS | | | | | +-----------------+---------------+----------------+----------+---------------+ |BIG-IP Edge |None |6035.x - 7110.x |Not |None | |Clients for Linux| | |vulnerable| | +-----------------+---------------+----------------+----------+---------------+ |BIG-IP Edge | | |Not | | |Clients for MAC |None |6035.x - 7110.x |vulnerable|None | |OS X | | | | | +-----------------+---------------+----------------+----------+---------------+ |BIG-IP Edge | | |Not | | |Clients for |None |6035.x - 7110.x |vulnerable|None | |Windows | | | | | +-----------------+---------------+----------------+----------+---------------+ |BIG-IP Edge | | |Not | | |Clients Windows |None |1.0.0.x |vulnerable|None | |Phone 8.1 | | | | | +-----------------+---------------+----------------+----------+---------------+ |BIG-IP Edge | | |Not | | |Portal for |None |1.0.0 - 1.0.2 |vulnerable|None | |Android | | | | | +-----------------+---------------+----------------+----------+---------------+ |BIG-IP Edge | | |Not | | |Portal for Apple |None |1.0.0 - 1.0.3 |vulnerable|None | |iOS | | | | | +-----------------+---------------+----------------+----------+---------------+ Security Advisory 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. If you have manually enabled DNS for networks in the Name Service Switch Configuration file, you can mitigate this vulnerability by disabling DNS for networks in the Name Service Switch Configuration file (/etc/nsswitch.conf). Additionally, you should permit access to F5 products only over a secure network, and limit login access to trusted users. For additional information, refer to K13092: Overview of securing access to the BIG-IP system. - --------------------------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. 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