ESB-2018.1920.2 - UPDATE [Appliance] F5 products: Denial of service - Existing account 2018-07-10

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

                              ESB-2018.1920.2
            K02236463: Linux kernel vulnerability CVE-2017-9075
                               10 July 2018

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

        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
                   Reduced Security  -- Existing Account
Resolution:        Mitigation
CVE Names:         CVE-2017-9075  

Reference:         ESB-2018.1797
                   ESB-2017.1548
                   ESB-2017.1526.2

Original Bulletin: 
   https://support.f5.com/csp/article/K02236463
   https://support.f5.com/csp/article/K02613439
   https://support.f5.com/csp/article/K61429540

Revision History:  July 10 2018: Added Heuristics H02236463 and H02613439.
                   July  3 2018: Initial Release

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

K02236463: Linux kernel vulnerability CVE-2017-9075

Security Advisory

Original Publication Date: Jul 03, 2018

Security Advisory Description

The sctp_v6_create_accept_sk function in net/sctp/ipv6.c in the Linux kernel
through 4.11.1 mishandles inheritance, which allows local users to cause a
denial of service or possibly have unspecified other impact via crafted system
calls, a related issue to CVE-2017-8890. (CVE-2017-9075)

Impact

This vulnerability allows malicious users to cause a denial of service (DoS) on
the F5 product.

Security Advisory Status

F5 Product Development has assigned ID 726409 (BIG-IP), ID 726441 (BIG-IQ/
iWorkflow), ID 726433 (Enterprise Manager), and CPF-24925 and CPF-24926
(Traffix) to this vulnerability. Additionally, BIG-IP iHealth may list
Heuristic H02236463 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. 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        |          |      |or feature|
|                   |      |vulnerable|          |          |      |          |
|-------------------+------+----------+----------+----------+------+----------|
|BIG-IP (LTM, AAM,  |13.x  |13.0.0 -  |None      |          |      |          |
|AFM, Analytics,    |      |13.1.0    |          |          |      |          |
|APM, ASM, DNS, Edge|------+----------+----------|          |      |          |
|Gateway, FPS, GTM, |12.x  |12.1.0 -  |None      |Medium    |6.5   |Linux     |
|Link Controller,   |      |12.1.3    |          |          |      |kernel    |
|PEM,               |------+----------+----------|          |      |          |
|WebAccelerator)    |11.x  |11.2.1 -  |None      |          |      |          |
|                   |      |11.6.3    |          |          |      |          |
|-------------------+------+----------+----------+----------+------+----------|
|ARX                |6.x   |None      |Not       |Not       |None  |None      |
|                   |      |          |applicable|vulnerable|      |          |
|-------------------+------+----------+----------+----------+------+----------|
|Enterprise Manager |3.x   |3.1.1     |None      |Medium    |6.5   |Linux     |
|                   |      |          |          |          |      |kernel    |
|-------------------+------+----------+----------+----------+------+----------|
|                   |6.x   |6.0.0     |None      |          |      |          |
|                   |------+----------+----------|          |      |          |
|BIG-IQ Centralized |5.x   |5.0.0 -   |None      |Medium    |6.5   |Linux     |
|Management         |      |5.4.0     |          |          |      |kernel    |
|                   |------+----------+----------|          |      |          |
|                   |4.x   |4.6.0     |None      |          |      |          |
|-------------------+------+----------+----------+----------+------+----------|
|BIG-IQ Cloud and   |1.x   |1.0.0     |None      |Medium    |6.5   |Linux     |
|Orchestration      |      |          |          |          |      |kernel    |
|-------------------+------+----------+----------+----------+------+----------|
|F5 iWorkflow       |2.x   |2.1.0 -   |None      |Medium    |6.5   |Linux     |
|                   |      |2.3.0     |          |          |      |kernel    |
|-------------------+------+----------+----------+----------+------+----------|
|                   |5.x   |5.0.0 -   |None      |          |      |          |
|Traffix SDC        |      |5.1.0     |          |Medium    |6.5   |Linux     |
|                   |------+----------+----------|          |      |kernel    |
|                   |4.x   |4.4.0     |None      |          |      |          |
+-----------------------------------------------------------------------------+

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

To mitigate this vulnerability, you should permit management access to F5
products only over a secure network and restrict access for affected systems to
only trusted users. For more information about implementing this on a BIG-IP
system, refer to K13092: Overview of securing access to the BIG-IP system.

- --------------------------------------------------------------------------------

K02613439: Linux kernel vulnerability CVE-2017-9076

Security Advisory

Original Publication Date: Jul 03, 2018

Security Advisory Description

The dccp_v6_request_recv_sock function in net/dccp/ipv6.c in the Linux kernel
through 4.11.1 mishandles inheritance, which allows local users to cause a
denial of service or possibly have unspecified other impact via crafted system
calls, a related issue to CVE-2017-8890. (CVE-2017-9076)

Impact

This vulnerability allows an unprivileged local user to cause a denial of
service (DoS) or disruption of service through crafted system calls.

Security Advisory Status

F5 Product Development has assigned ID 726409 (BIG-IP), ID 726441 (BIG-IQ and
F5 iWorkflow), and ID 726433 (Enterprise Manager) to this vulnerability.
Additionally, BIG-IP iHealth may list Heuristic H02613439 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. 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        |           |      |or feature|
|                  |      |vulnerable|          |           |      |          |
|------------------+------+----------+----------+-----------+------+----------|
|BIG-IP (LTM, AAM, |13.x  |13.0.0 -  |None      |           |      |          |
|AFM, Analytics,   |      |13.1.0    |          |           |      |          |
|APM, ASM, DNS,    |------+----------+----------|           |      |          |
|Edge Gateway, FPS,|12.x  |12.1.0 -  |None      |Medium     |6.5   |Linux     |
|GTM, Link         |      |12.1.3    |          |           |      |kernel    |
|Controller, PEM,  |------+----------+----------|           |      |          |
|WebAccelerator)   |11.x  |11.2.1 -  |None      |           |      |          |
|                  |      |11.6.3    |          |           |      |          |
|------------------+------+----------+----------+-----------+------+----------|
|                  |      |          |Not       |Not        |      |          |
|ARX               |6.x   |None      |applicable|vulnerable^|None  |None      |
|                  |      |          |          |2          |      |          |
|------------------+------+----------+----------+-----------+------+----------|
|Enterprise Manager|3.x   |3.1.1     |None      |Medium     |6.5   |Linux     |
|                  |      |          |          |           |      |kernel    |
|------------------+------+----------+----------+-----------+------+----------|
|                  |6.x   |6.0.0     |None      |           |      |          |
|                  |------+----------+----------|           |      |          |
|BIG-IQ Centralized|5.x   |5.0.0 -   |None      |Medium     |6.5   |Linux     |
|Management        |      |5.4.0     |          |           |      |kernel    |
|                  |------+----------+----------|           |      |          |
|                  |4.x   |4.6.0     |None      |           |      |          |
|------------------+------+----------+----------+-----------+------+----------|
|BIG-IQ Cloud and  |1.x   |1.0.0     |None      |Medium     |6.5   |Linux     |
|Orchestration     |      |          |          |           |      |kernel    |
|------------------+------+----------+----------+-----------+------+----------|
|F5 iWorkflow      |2.x   |2.1.0 -   |None      |Medium     |6.5   |Linux     |
|                  |      |2.3.0     |          |           |      |kernel    |
|------------------+------+----------+----------+-----------+------+----------|
|                  |5.x   |None      |Not       |           |      |          |
|                  |      |          |applicable|Not        |      |          |
|Traffix SDC       |------+----------+----------|vulnerable |None  |None      |
|                  |4.x   |None      |Not       |           |      |          |
|                  |      |          |applicable|           |      |          |
+-----------------------------------------------------------------------------+

^2 The specified products contain the affected code. However, F5 identifies the
vulnerability status as Not vulnerable because the attacker cannot exploit the
code in default, standard, or recommended configuration.

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

To mitigate this vulnerability, you should permit management access to F5
products only over a secure network and restrict command line/Configuration
utility access for affected systems to only Administrative 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.

- --------------------------------------------------------------------------------

K61429540: Linux kernel vulnerability CVE-2017-9077

Security Advisory

Original Publication Date: Jul 03, 2018

Security Advisory Description

The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in the Linux kernel
through 4.11.1 mishandles inheritance, which allows local users to cause a
denial of service or possibly have unspecified other impact via crafted system
calls, a related issue to CVE-2017-8890. (CVE-2017-9077)

Impact

This vulnerability allows a disruption of service, and possibly an unauthorized
disclosure of information.

Security Advisory Status

F5 Product Development has assigned ID 726409 (BIG-IP), ID 726441 (BIG-IQ), ID
726433 (Enterprise Manager), and IDs CPF-24925 and CPF-24926 (Traffix SDC) 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        |          |      |or feature|
|                   |      |vulnerable|          |          |      |          |
|-------------------+------+----------+----------+----------+------+----------|
|BIG-IP (LTM, AAM,  |13.x  |13.0.0 -  |None      |          |      |          |
|AFM, Analytics,    |      |13.1.0    |          |          |      |          |
|APM, ASM, DNS, Edge|------+----------+----------|          |      |          |
|Gateway, FPS, GTM, |12.x  |12.1.0 -  |None      |Medium    |6.5   |Linux     |
|Link Controller,   |      |12.1.3    |          |          |      |kernel    |
|PEM,               |------+----------+----------|          |      |          |
|WebAccelerator)    |11.x  |11.2.1 -  |None      |          |      |          |
|                   |      |11.6.3    |          |          |      |          |
|-------------------+------+----------+----------+----------+------+----------|
|ARX                |6.x   |None      |Not       |Not       |None  |None      |
|                   |      |          |applicable|vulnerable|      |          |
|-------------------+------+----------+----------+----------+------+----------|
|Enterprise Manager |3.x   |3.1.1     |None      |Medium    |6.5   |Linux     |
|                   |      |          |          |          |      |kernel    |
|-------------------+------+----------+----------+----------+------+----------|
|                   |6.x   |6.0.0     |None      |          |      |          |
|                   |------+----------+----------|          |      |          |
|BIG-IQ Centralized |5.x   |5.0.0 -   |None      |Medium    |6.5   |Linux     |
|Management         |      |5.4.0     |          |          |      |kernel    |
|                   |------+----------+----------|          |      |          |
|                   |4.x   |4.6.0     |None      |          |      |          |
|-------------------+------+----------+----------+----------+------+----------|
|BIG-IQ Cloud and   |1.x   |1.0.0     |None      |Medium    |6.5   |Linux     |
|Orchestration      |      |          |          |          |      |kernel    |
|-------------------+------+----------+----------+----------+------+----------|
|F5 iWorkflow       |2.x   |2.1.0 -   |None      |Medium    |6.5   |Linux     |
|                   |      |2.3.0     |          |          |      |kernel    |
|-------------------+------+----------+----------+----------+------+----------|
|                   |5.x   |5.0.0 -   |Not       |          |      |          |
|                   |      |5.1.0     |applicable|          |      |          |
|Traffix SDC        |------+----------+----------|Medium    |6.5   |None      |
|                   |4.x   |4.4.0     |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
+-----------------------------------------------------------------------------+

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

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 -
13.x) and K13092: Overview of securing access to the BIG-IP system.

- --------------------------END INCLUDED TEXT--------------------

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