ESB-2017.2687.2 - UPDATE [Appliance] F5 products: Denial of service - Remote/unauthenticated 2017-12-22

Printable version
PGP/GPG verifiable version

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

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

                              ESB-2017.2687.2
            K81211720: Linux kernel vulnerability CVE-2017-6214
                             22 December 2017

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

        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-2017-6214  

Reference:         ASB-2017.0141
                   ASB-2017.0067
                   ESB-2017.2379
                   ESB-2017.1179
                   ESB-2017.1136
                   ESB-2017.0614

Original Bulletin: 
   https://support.f5.com/csp/article/K81211720

Revision History:  December 22 2017: Vendor updated source text with patched versions
                   October  24 2017: Initial Release

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

K81211720: Linux kernel vulnerability CVE-2017-6214

Security Advisory

Original Publication Date: Apr 14, 2017
Updated Date: Dec 22, 2017

Security Advisory Description

The tcp_splice_read function in net/ipv4/tcp.c in the Linux kernel before
4.9.11 allows remote attackers to cause a denial of service (infinite loop and
soft lockup) via vectors involving a TCP packet with the URG flag. (
CVE-2017-6214)

Impact

An attacker, using a specially crafted TCP packet, can force the kernel to
enter an infinite loop condition.

Security Advisory Status

F5 Product Development has assigned IDs 653879 and 653880 (BIG-IP), ID 654212
(BIG-IQ), ID 654205 (Enterprise Manager), ID 655792 (F5 iWorkflow), and
INSTALLER-2978, INSTALLER-2979, INSTALLER-2980, and INSTALLER-2981 (Traffix
SDC) to this vulnerability. Additionally, BIG-IP iHealth may list Heuristic
H81211720 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 to|          |Vulnerable      |
|Product        |to be vulnerable|be not vulnerable|Severity  |component or    |
|               |                |                 |          |feature         |
|---------------+----------------+-----------------+----------+----------------|
|               |13.0.0          |13.1.0           |          |                |
|               |12.0.0 - 12.1.2 |12.1.3           |          |                |
|BIG-IP LTM     |11.6.0 - 11.6.1 |11.6.2           |High      |Linux kernel    |
|               |11.4.0 - 11.5.4 |11.5.5           |          |                |
|               |11.2.1          |                 |          |                |
|---------------+----------------+-----------------+----------+----------------|
|               |13.0.0          |13.1.0           |          |                |
|BIG-IP AAM     |12.0.0 - 12.1.2 |12.1.3           |High      |Linux kernel    |
|               |11.6.0 - 11.6.1 |11.6.2           |          |                |
|               |11.4.0 - 11.5.4 |11.5.5           |          |                |
|---------------+----------------+-----------------+----------+----------------|
|               |13.0.0          |13.1.0           |          |                |
|BIG-IP AFM     |12.0.0 - 12.1.2 |12.1.3           |High      |Linux kernel    |
|               |11.6.0 - 11.6.1 |11.6.2           |          |                |
|               |11.4.0 - 11.5.4 |11.5.5           |          |                |
|---------------+----------------+-----------------+----------+----------------|
|               |13.0.0          |13.1.0           |          |                |
|BIG-IP         |12.0.0 - 12.1.2 |12.1.3           |          |                |
|Analytics      |11.6.0 - 11.6.1 |11.6.2           |High      |Linux kernel    |
|               |11.4.0 - 11.5.4 |11.5.5           |          |                |
|               |11.2.1          |                 |          |                |
|---------------+----------------+-----------------+----------+----------------|
|               |13.0.0          |13.1.0           |          |                |
|               |12.0.0 - 12.1.2 |12.1.3           |          |                |
|BIG-IP APM     |11.6.0 - 11.6.1 |11.6.2           |High      |Linux kernel    |
|               |11.4.0 - 11.5.4 |11.5.5           |          |                |
|               |11.2.1          |                 |          |                |
|---------------+----------------+-----------------+----------+----------------|
|               |13.0.0          |13.1.0           |          |                |
|               |12.0.0 - 12.1.2 |12.1.3           |          |                |
|BIG-IP ASM     |11.6.0 - 11.6.1 |11.6.2           |High      |Linux kernel    |
|               |11.4.0 - 11.5.4 |11.5.5           |          |                |
|               |11.2.1          |                 |          |                |
|---------------+----------------+-----------------+----------+----------------|
|BIG-IP DNS     |13.0.0          |13.1.0           |High      |Linux kernel    |
|               |12.0.0 - 12.1.2 |12.1.3           |          |                |
|---------------+----------------+-----------------+----------+----------------|
|BIG-IP Edge    |11.2.1          |None             |High      |Linux kernel    |
|Gateway        |                |                 |          |                |
|---------------+----------------+-----------------+----------+----------------|
|               |11.6.0 - 11.6.1 |11.6.2           |          |                |
|BIG-IP GTM     |11.4.0 - 11.5.4 |11.5.5           |High      |Linux kernel    |
|               |11.2.1          |                 |          |                |
|---------------+----------------+-----------------+----------+----------------|
|               |13.0.0          |13.1.0           |          |                |
|BIG-IP Link    |12.0.0 - 12.1.2 |12.1.3           |          |                |
|Controller     |11.6.0 - 11.6.1 |11.6.2           |High      |Linux kernel    |
|               |11.4.0 - 11.5.4 |11.5.5           |          |                |
|               |11.2.1          |                 |          |                |
|---------------+----------------+-----------------+----------+----------------|
|               |13.0.0          |13.1.0           |          |                |
|BIG-IP PEM     |12.0.0 - 12.1.2 |12.1.3           |High      |Linux kernel    |
|               |11.6.0 - 11.6.1 |11.6.2           |          |                |
|               |11.4.0 - 11.5.4 |11.5.5           |          |                |
|---------------+----------------+-----------------+----------+----------------|
|BIG-IP PSM     |11.4.0 - 11.4.1 |None             |High      |Linux kernel    |
|---------------+----------------+-----------------+----------+----------------|
|BIG-IP         |11.2.1          |None             |High      |Linux kernel    |
|WebAccelerator |                |                 |          |                |
|---------------+----------------+-----------------+----------+----------------|
|               |13.0.0          |13.1.0           |          |                |
|BIG-IP WebSafe |12.0.0 - 12.1.2 |12.1.3           |High      |Linux kernel    |
|               |11.6.0 - 11.6.1 |11.6.2           |          |                |
|---------------+----------------+-----------------+----------+----------------|
|ARX            |None            |6.2.0 - 6.4.0    |Not       |None            |
|               |                |                 |vulnerable|                |
|---------------+----------------+-----------------+----------+----------------|
|Enterprise     |3.1.1           |None             |High      |Linux kernel    |
|Manager        |                |                 |          |                |
|---------------+----------------+-----------------+----------+----------------|
|BIG-IQ Cloud   |4.4.0 - 4.5.0   |None             |High      |Linux kernel    |
|---------------+----------------+-----------------+----------+----------------|
|BIG-IQ Device  |4.4.0 - 4.5.0   |None             |High      |Linux kernel    |
|---------------+----------------+-----------------+----------+----------------|
|BIG-IQ Security|4.4.0 - 4.5.0   |None             |High      |Linux kernel    |
|---------------+----------------+-----------------+----------+----------------|
|BIG-IQ ADC     |4.5.0           |None             |High      |Linux kernel    |
|---------------+----------------+-----------------+----------+----------------|
|BIG-IQ         |5.0.0 - 5.1.0   |                 |          |                |
|Centralized    |4.6.0           |None             |High      |Linux kernel    |
|Management     |                |                 |          |                |
|---------------+----------------+-----------------+----------+----------------|
|BIG-IQ Cloud   |                |                 |          |                |
|and            |1.0.0           |None             |High      |Linux kernel    |
|Orchestration  |                |                 |          |                |
|---------------+----------------+-----------------+----------+----------------|
|F5 iWorkflow   |2.0.0 - 2.1.0   |None             |High      |Linux kernel    |
|---------------+----------------+-----------------+----------+----------------|
|LineRate       |None            |2.5.0 - 2.6.2    |Not       |None            |
|               |                |                 |vulnerable|                |
|---------------+----------------+-----------------+----------+----------------|
|Traffix SDC    |5.0.0 - 5.1.0   |None             |High      |Linux kernel    |
|               |4.0.0 - 4.4.0   |                 |          |                |
+------------------------------------------------------------------------------+

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.

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

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 only trusted users. For more information, refer to K13309:
Restricting access to the Configuration utility by source IP address
(11.x-13.x) and 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.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=T6LK
-----END PGP SIGNATURE-----

« Back to bulletins