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             AUSCERT External Security Bulletin Redistribution

                               ESB-2016.2085
               sol32049025: BIND vulnerability CVE-2016-6170
                             2 September 2016

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           F5 BIG-IP products
                   F5 Enterprise Manager
                   F5 BIG-IQ products
                   F5 iWorkflow
Publisher:         F5 Networks
Operating System:  Network Appliance
                   Virtualisation
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-6170  

Reference:         ESB-2016.2085

Original Bulletin: 
   https://support.f5.com/kb/en-us/solutions/public/k/32/sol32049025.html

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sol32049025: BIND vulnerability CVE-2016-6170

Security Advisory

Original Publication Date: 09/01/2016

Vulnerability Description

ISC BIND through 9.9.9-P1, 9.10.x through 9.10.4-P1, and 9.11.x through 
9.11.0b1 allows primary DNS servers to cause a denial of service (secondary 
DNS server crash) via a large AXFR response, and possibly allows IXFR servers
to cause a denial of service (IXFR client crash) via a large IXFR response and
allows remote authenticated users to cause a denial of service (primary DNS 
server crash) via a large UPDATE message. (CVE-2016-6170)

Impact

BIG-IP

A specially crafted reply to a DNS query using the RESOLV::lookup iRule 
command may consume excess system resources or possibly lead to a BIG-IP 
system failover.

iWorkflow, BIG-IQ, and Enterprise Manager

These systems are not vulnerable in a default configuration. The vulnerable 
code is present on the system; however, configuring a DNS server is not 
supported on these systems. In addition, after DNS configuration, this 
vulnerability can only be exploited if untrusted parties are allowed to 
overwhelm the server by transferring large quantities of zone data.

Security Issue Status

F5 Product Development has assigned ID 550596 (BIG-IP), ID 609789 (BIG-IQ and
iWorkflow), and ID 609791 (Enterprise Manager) 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                      12.0.0                             12.1.0                                 Medium          The iRule RESOLV::lookup command
                                11.4.0 - 11.6.0                    12.0.0 HF3
                                11.2.1                             11.6.1
				10.2.1 - 10.2.4                    11.5.4 HF2
BIG-IP AAM                      12.0.0                             12.1.0                                 Medium          The iRule RESOLV::lookup command
                                11.4.0 - 11.6.0                    12.0.0 HF3
                                                                   11.6.1
								   11.5.4 HF2
BIG-IP AFM                      12.0.0                             12.1.0                                 Medium          The iRule RESOLV::lookup command
                                11.4.0 - 11.6.0                    12.0.0 HF3
                                                                   11.6.1
								   11.5.4 HF2
BIG-IP Analytics                12.0.0                             12.1.0                                 Medium          The iRule RESOLV::lookup command
                                11.4.0 - 11.6.0                    12.0.0 HF3
                                11.2.1                             11.6.1
                                11.5.4 HF2
BIG-IP APM                      12.0.0                             12.1.0                                 Medium          The iRule RESOLV::lookup command
                                11.4.0 - 11.6.0                    12.0.0 HF3
                                11.2.1                             11.6.1
				10.2.1 - 10.2.4                    11.5.4 HF2
BIG-IP ASM                      12.0.0                             12.1.0                                 Medium          The iRule RESOLV::lookup command
                                11.4.0 - 11.6.0                    12.0.0 HF3
                                11.2.1                             11.6.1
				10.2.1 - 10.2.4                    11.5.4 HF2
BIG-IP DNS                      12.0.0                             12.1.0                                 Medium          The iRule RESOLV::lookup command
                                                                   12.0.0 HF3
BIG-IP Edge Gateway             11.2.1                             None                                   Medium          The iRule RESOLV::lookup command
                                10.2.1 - 10.2.4
BIG-IP GTM                      11.4.0 - 11.6.0                    11.6.1                                 Medium          The iRule RESOLV::lookup command
                                11.2.1                             11.5.4 HF2
								   10.2.1 - 10.2.4
BIG-IP Link Controller          12.0.0                             12.1.0                                 Medium          The iRule RESOLV::lookup command
                                11.4.0 - 11.6.0                    12.0.0 HF3
                                11.2.1                             11.6.1
				10.2.1 - 10.2.4                    11.5.4 HF2
BIG-IP PEM                      12.0.0                             12.1.0                                 Medium          The iRule RESOLV::lookup command
                                11.4.0 - 11.6.0                    12.0.0 HF3
                                                                   11.6.1
								   11.5.4 HF2
BIG-IP PSM                      11.4.0 - 11.4.1                    None                                   Medium          The iRule RESOLV::lookup command
                                10.2.1 - 10.2.4
BIG-IP WebAccelerator           11.2.1                             None                                   Medium          The iRule RESOLV::lookup command
                                10.2.1 - 10.2.4
BIG-IP WOM                      11.2.1                             None                                   Medium          The iRule RESOLV::lookup command
                                10.2.1 - 10.2.4
BIG-IP WebSafe                  12.0.0                             12.1.0                                 Medium          The iRule RESOLV::lookup command
                                11.6.0                             12.0.0 HF3
                                                                   11.6.1
ARX                             None                               6.2.0 - 6.4.0                          Not vulnerable  None
Enterprise Manager              3.1.1                              None                                   Low             BIND
FirePass                        None                               7.0.0                                  Not vulnerable  None
BIG-IQ Cloud                    4.0.0 - 4.5.0                      None                                   Low             BIND
BIG-IQ Device                   4.2.0 - 4.5.0                      None                                   Low             BIND
BIG-IQ Security                 4.0.0 - 4.5.0                      None                                   Low             BIND
BIG-IQ ADC                      4.5.0                              None                                   Low             BIND
BIG-IQ Centralized Management   5.0.0                              None                                   Low             BIND
                                4.6.0
BIG-IQ Cloud and Orchestration  1.0.0                              None                                   Low             BIND
F5 iWorkflow                    2.0.0                              None                                   Low             BIND
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

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.

To determine the necessary upgrade path for your BIG-IQ system, you should 
understand the BIG-IQ product offering name changes. For more information, 
refer to SOL21232150: Considerations for upgrading BIG-IQ or F5 iWorkflow 
systems.

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

SOL167: Downloading software and firmware from F5

SOL13123: Managing BIG-IP product hotfixes (11.x - 12.x)

SOL9502: BIG-IP hotfix matrix

The iRule RESOLV::lookup command page on DevCentral

Note: A DevCentral login is required to access this content.

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