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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.3051
                     BIND vulnerability CVE-2019-6471
                              12 August 2019

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

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

Product:           F5 products
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-6471  

Reference:         ESB-2019.2212

Original Bulletin: 
   https://support.f5.com/csp/article/K10092301

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K10092301:BIND vulnerability CVE-2019-6471

Security Advisory

Original Publication Date: 24 Jul, 2019

Latest   Publication Date: 10 Aug, 2019

Security Advisory 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-2019-6471)  

Impact

A remote attacker, who could cause the BIND resolver to perform queries on a
server, which responds deliberately with malformed answers, can cause named to
exit and result in a denial-of-service (DoS) condition.

Security Advisory Status

F5 Product Development has assigned ID 794413 (BIG-IP, F5 iWorkflow, and
Enterprise Manager) and ID 803389 (BIG-IQ) to this vulnerability.

To determine if your product and version have been evaluated for this
vulnerability, refer to the Applies to (see versions) box. 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. For more information
about security advisory versioning, refer to K51812227: Understanding Security
Advisory versioning.

+-------------------+------+----------+----------+----------+------+----------+
|                   |      |Versions  |Fixes     |          |CVSSv3|Vulnerable|
|Product            |Branch|known to  |introduced|Severity  |score^|component |
|                   |      |be        |in        |          |1     |or feature|
|                   |      |vulnerable|          |          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |15.x  |15.0.0    |15.0.1    |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |14.x  |14.0.0 -  |None      |          |      |          |
|BIG-IP (LTM, AAM,  |      |14.1.0    |          |          |      |          |
|AFM, Analytics,    +------+----------+----------+          |      |          |
|APM, ASM, DNS, Edge|13.x  |13.1.0 -  |13.1.3    |          |      |          |
|Gateway, FPS, GTM, |      |13.1.1    |          |Medium    |5.9   |BIND      |
|Link Controller,   +------+----------+----------+          |      |          |
|PEM,               |12.x  |12.1.0 -  |12.1.5    |          |      |          |
|WebAccelerator)    |      |12.1.4    |          |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |11.x  |11.5.2 -  |None      |          |      |          |
|                   |      |11.6.4    |          |          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|Enterprise Manager |3.x   |3.1.1     |None      |Medium    |5.9   |BIND      |
+-------------------+------+----------+----------+----------+------+----------+
|                   |6.x   |6.0.0 -   |None      |          |      |          |
|BIG-IQ Centralized |      |6.1.0     |          |          |      |          |
|Management         +------+----------+----------+Medium    |5.9   |BIND      |
|                   |5.x   |5.1.0 -   |None      |          |      |          |
|                   |      |5.4.0     |          |          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|F5 iWorkflow       |2.x   |2.3.0     |None      |Medium    |5.9   |BIND      |
+-------------------+------+----------+----------+----------+------+----------+
|Traffix SDC        |5.x   |None      |Not       |Not       |None  |None      |
|                   |      |          |applicable|vulnerable|      |          |
+-------------------+------+----------+----------+----------+------+----------+

^1The CVSSv3 score link takes you to a resource outside of AskF5, and it is
possible that the document may be removed without our knowledge.

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 Fixes introduced in 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

None

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