ESB-2018.3441 - [Appliance] F5 Products: Denial of service - Remote/unauthenticated 2018-11-02

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.3441
            K60104355: Linux kernel vulnerability CVE-2017-5970
                              2 November 2018

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        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-2017-5970  

Reference:         ESB-2017.2379
                   ESB-2017.2364
                   ESB-2017.2233
                   ESB-2017.2214
                   ESB-2017.1890

Original Bulletin: 
   https://support.f5.com/csp/article/K60104355

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K60104355: Linux kernel vulnerability CVE-2017-5970

Security Advisory

Original Publication Date: Apr 19, 2017
Updated Date: Nov 02, 2018

Security Advisory Description

The ipv4_pktinfo_prepare function in net/ipv4/ip_sockglue.c in the Linux kernel
through 4.9.9 allows attackers to cause a denial of service (system crash) via
(1) an application that makes crafted system calls or possibly (2) IPv4 traffic
with invalid IP options. (CVE-2017-5970)

Impact

This vulnerability may allow a remote user to cause a denial of service (DoS)
for the BIG-IP control plane.

Note: Only the BIG-IP control plane is vulnerable; the data plane is not
affected by this vulnerability.

Security Advisory Status

F5 Product Development has assigned ID 651741 (BIG-IP) to this vulnerability.
Additionally, BIG-IP iHealth may list Heuristic H60104355 on the Diagnostics >
Identified > High page.

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 to|          |Vulnerable      |
|Product        |to be vulnerable|be not vulnerable|Severity  |component or    |
|               |                |                 |          |feature         |
+---------------+----------------+-----------------+----------+----------------+
|               |                |14.0.0.3         |          |                |
|               |                |13.1.1           |          |                |
|BIG-IP LTM     |14.0.0          |13.1.0.8         |High      |Linux kernel    |
|               |13.0.0 - 13.1.0 |12.0.0 - 12.1.2  |          |                |
|               |                |11.4.0 - 11.6.1  |          |                |
|               |                |11.2.1           |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |                |14.0.0.3         |          |                |
|               |14.0.0          |13.1.1           |          |                |
|BIG-IP AAM     |13.0.0 - 13.1.0 |13.1.0.8         |High      |Linux kernel    |
|               |                |12.0.0 - 12.1.2  |          |                |
|               |                |11.4.0 - 11.6.1  |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |                |14.0.0.3         |          |                |
|               |14.0.0          |13.1.1           |          |                |
|BIG-IP AFM     |13.0.0 - 13.1.0 |13.1.0.8         |High      |Linux kernel    |
|               |                |12.0.0 - 12.1.2  |          |                |
|               |                |11.4.0 - 11.6.1  |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |                |14.0.0.3         |          |                |
|               |                |13.1.1           |          |                |
|BIG-IP         |14.0.0          |13.1.0.8         |High      |Linux kernel    |
|Analytics      |13.0.0 - 13.1.0 |12.0.0 - 12.1.2  |          |                |
|               |                |11.4.0 - 11.6.1  |          |                |
|               |                |11.2.1           |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |                |14.0.0.3         |          |                |
|               |                |13.1.1           |          |                |
|BIG-IP APM     |14.0.0          |13.1.0.8         |High      |Linux kernel    |
|               |13.0.0 - 13.1.0 |12.0.0 - 12.1.2  |          |                |
|               |                |11.4.0 - 11.6.1  |          |                |
|               |                |11.2.1           |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |                |14.0.0.3         |          |                |
|               |                |13.1.1           |          |                |
|BIG-IP ASM     |14.0.0          |13.1.0.8         |High      |Linux kernel    |
|               |13.0.0 - 13.1.0 |12.0.0 - 12.1.2  |          |                |
|               |                |11.4.0 - 11.6.1  |          |                |
|               |                |11.2.1           |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |                |14.0.0.3         |          |                |
|BIG-IP DNS     |14.0.0          |13.1.1           |High      |Linux kernel    |
|               |13.0.0 - 13.1.0 |13.1.0.8         |          |                |
|               |                |12.0.0 - 12.1.2  |          |                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP Edge    |None            |11.2.1           |Not       |None            |
|Gateway        |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP GTM     |None            |11.4.0 - 11.6.1  |Not       |None            |
|               |                |11.2.1           |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|               |                |14.0.0.3         |          |                |
|               |                |13.1.1           |          |                |
|BIG-IP Link    |14.0.0          |13.1.0.8         |High      |Linux kernel    |
|Controller     |13.0.0 - 13.1.0 |12.0.0 - 12.1.2  |          |                |
|               |                |11.4.0 - 11.6.1  |          |                |
|               |                |11.2.1           |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |                |14.0.0.3         |          |                |
|               |14.0.0          |13.1.1           |          |                |
|BIG-IP PEM     |13.0.0 - 13.1.0 |13.1.0.8         |High      |Linux kernel    |
|               |                |12.0.0 - 12.1.2  |          |                |
|               |                |11.4.0 - 11.6.1  |          |                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP PSM     |None            |11.4.0 - 11.4.1  |Not       |None            |
|               |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP         |None            |11.2.1           |Not       |None            |
|WebAccelerator |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|               |                |14.0.0.3         |          |                |
|               |14.0.0          |13.1.1           |          |                |
|BIG-IP WebSafe |13.0.0 - 13.1.0 |13.1.0.8         |High      |Linux kernel    |
|               |                |12.0.0 - 12.1.2  |          |                |
|               |                |11.6.0 - 11.6.1  |          |                |
+---------------+----------------+-----------------+----------+----------------+
|ARX            |None            |6.2.0 - 6.4.0    |Not       |None            |
|               |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|Enterprise     |None            |3.1.1            |Not       |None            |
|Manager        |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Cloud   |None            |4.4.0 - 4.5.0    |Not       |None            |
|               |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Device  |None            |4.4.0 - 4.5.0    |Not       |None            |
|               |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Security|None            |4.4.0 - 4.5.0    |Not       |None            |
|               |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ ADC     |None            |4.5.0            |Not       |None            |
|               |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ         |                |5.0.0 - 5.1.0    |Not       |                |
|Centralized    |None            |4.6.0            |vulnerable|None            |
|Management     |                |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Cloud   |                |                 |Not       |                |
|and            |None            |1.0.0            |vulnerable|None            |
|Orchestration  |                |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|F5 iWorkflow   |None            |2.0.0 - 2.1.0    |Not       |None            |
|               |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|LineRate       |None            |2.5.0 - 2.6.2    |Not       |None            |
|               |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|Traffix SDC    |None            |5.0.0 - 5.1.0    |Not       |None            |
|               |                |4.0.0 - 4.4.0    |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+

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.

Mitigation

To mitigate this vulnerability, you should permit management access to F5
products only over a secure network and restrict command line access for
affected systems to trusted users. For more information, refer to K13309:
Restricting access to the Configuration utility by source IP address (11.x -
14.x) and K13092: Overview of securing access to the BIG-IP system.

Impact of action: Performing the suggested mitigation should not have a
negative impact on your system.

Supplemental Information

  o K9970: Subscribing to email notifications regarding F5 products
  o K9957: Creating a custom RSS feed to view new and updated documents
  o K4602: Overview of the F5 security vulnerability response policy
  o K4918: Overview of the F5 critical issue hotfix policy
  o K167: Downloading software and firmware from F5
  o K9502: BIG-IP hotfix and point release matrix

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