ESB-2018.1899 - [Appliance] F5 products: Denial of service - Existing account 2018-06-29

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1899
                 Denial of service patched in F5 products
                               29 June 2018

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

Product:           F5 BIG-IP products
                   F5 Enterprise Manager
                   F5 BIG-IQ products
                   F5 iWorkflow
                   F5 Traffix SDC
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-7542  

Reference:         ESB-2017.2075
                   ESB-2017.1958

Original Bulletin: 
   https://support.f5.com/csp/article/K84024430

Comment: Note that not all affected products have a patch available yet.

- --------------------------BEGIN INCLUDED TEXT--------------------

K84024430: Linux kernel vulnerability CVE-2017-7542

Security Advisory

Original Publication Date: Mar 16, 2018
Updated Date: Jun 29, 2018

Security Advisory Description

The ip6_find_1stfragopt function in net/ipv6/output_core.c in the Linux kernel
through 4.12.3 allows local users to cause a denial of service (integer
overflow and infinite loop) by leveraging the ability to open a raw socket. (
CVE-2017-7542)

Impact

This vulnerability allows disruption of service.

Security Advisory Status

F5 Product Development has assigned ID 709256 (BIG-IP), ID 710329 (BIG-IQ), ID
710328 (Enterprise Manager), and ID 710329 (F5 iWorkflow) to this
vulnerability. Additionally, BIG-IP iHealth may list Heuristic H84024430 on the
Diagnostics > Identified > Medium page.

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.

+-----------------------------------------------------------------------------+
|                   |      |Versions  |Fixes     |          |CVSSv3|Vulnerable|
|Product            |Branch|known to  |introduced|Severity  |score^|component |
|                   |      |be        |in        |          |1     |or feature|
|                   |      |vulnerable|          |          |      |          |
|-------------------+------+----------+----------+----------+------+----------|
|                   |13.x  |13.0.0 -  |13.1.0.8  |          |      |          |
|BIG-IP (LTM, AAM,  |      |13.1.0    |          |          |      |          |
|AFM, Analytics,    |------+----------+----------|          |      |          |
|APM, ASM, DNS, Edge|12.x  |12.1.0 -  |12.1.3.3  |          |      |          |
|Gateway, GTM, Link |      |12.1.3    |          |Medium    |5.5   |Kernel    |
|Controller, PEM,   |------+----------+----------|          |      |          |
|WebAccelerator,    |      |11.6.0 -  |          |          |      |          |
|WebSafe)           |11.x  |11.6.3    |11.6.3.1  |          |      |          |
|                   |      |11.2.1 -  |11.5.6    |          |      |          |
|                   |      |11.5.5    |          |          |      |          |
|-------------------+------+----------+----------+----------+------+----------|
|ARX                |6.x   |None      |Not       |Not       |None  |None      |
|                   |      |          |applicable|vulnerable|      |          |
|-------------------+------+----------+----------+----------+------+----------|
|Enterprise Manager |3.x   |3.1.1     |None      |Medium    |5.5   |Kernel    |
|-------------------+------+----------+----------+----------+------+----------|
|                   |5.x   |5.0.0 -   |None      |          |      |          |
|BIG-IQ Centralized |      |5.4.0     |          |Medium    |5.5   |Kernel    |
|Management         |------+----------+----------|          |      |          |
|                   |4.x   |4.6.0     |None      |          |      |          |
|-------------------+------+----------+----------+----------+------+----------|
|BIG-IQ Cloud and   |1.x   |1.0.0     |None      |Medium    |5.5   |Kernel    |
|Orchestration      |      |          |          |          |      |          |
|-------------------+------+----------+----------+----------+------+----------|
|F5 iWorkflow       |2.x   |2.0.1 -   |None      |Medium    |5.5   |Kernel    |
|                   |      |2.3.0     |          |          |      |          |
|-------------------+------+----------+----------+----------+------+----------|
|LineRate           |2.x   |None      |Not       |Not       |None  |None      |
|                   |      |          |applicable|vulnerable|      |          |
|-------------------+------+----------+----------+----------+------+----------|
|                   |5.x   |5.0.0 -   |None      |          |      |          |
|                   |      |5.1.0     |          |          |      |          |
|Traffix SDC        |------+----------+----------|Medium    |5.5   |Kernel    |
|                   |4.x   |4.0.5 -   |None      |          |      |          |
|                   |      |4.4.0     |          |          |      |          |
+-----------------------------------------------------------------------------+

^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.

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 K21232150: Considerations for upgrading BIG-IQ or F5 iWorkflow systems
.

Mitigation

None

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