ESB-2018.1920.7 - UPDATE [Appliance] F5 products: Multiple vulnerabilities 2019-03-26

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             AUSCERT External Security Bulletin Redistribution

                              ESB-2018.1920.7
                   Linux kernel multiple vulnerabilities
                               26 March 2019

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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:     Access Privileged Data -- Existing Account
                   Denial of Service      -- Existing Account
                   Reduced Security       -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-9077 CVE-2017-9076 CVE-2017-9075
                   CVE-2017-8890 CVE-2017-7889 

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
   https://support.f5.com/csp/article/K80440915

Revision History:  March    26 2019: Added latest advisory update
                   March    13 2019: Updates to K02236463 and K02613439
                   December 18 2018: Updates to add 14.1.0 fixes
                   October  24 2018: Security Advisory Status for K61429540 updated with heuristic information for BIG-IP Health
                   October  19 2018: Patch available for BIP-IP and added (CVE-2017-7889)
                   July     10 2018: Added Heuristics H02236463 and H02613439.
                   July      3 2018: Initial Release

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K02613439:Linux kernel vulnerability CVE-2017-9076

Security Advisory

Original Publication Date: 03 Jul, 2018

Latest   Publication Date: 26 Mar, 2019

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        |           |1     |or feature|
|                  |      |vulnerable|          |           |      |          |
+------------------+------+----------+----------+-----------+------+----------+
|                  |14.x  |14.0.0    |14.1.0    |           |      |          |
|                  |      |          |14.0.0.3  |           |      |          |
|                  +------+----------+----------+           |      |          |
|BIG-IP (LTM, AAM, |13.x  |13.0.0 -  |13.1.1.2  |           |      |          |
|AFM, Analytics,   |      |13.1.1    |          |           |      |          |
|APM, ASM, DNS,    +------+----------+----------+           |      |Linux     |
|Edge Gateway, FPS,|12.x  |12.1.0 -  |None      |Medium     |6.5   |kernel    |
|GTM, Link         |      |12.1.4    |          |           |      |          |
|Controller, PEM,  +------+----------+----------+           |      |          |
|WebAccelerator)   |      |11.6.1 -  |          |           |      |          |
|                  |11.x  |11.6.3    |11.6.4    |           |      |          |
|                  |      |11.2.1 -  |11.5.9    |           |      |          |
|                  |      |11.5.8    |          |           |      |          |
+------------------+------+----------+----------+-----------+------+----------+
|                  |      |          |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      |           |      |          |
|                  |      |6.1.0     |          |           |      |          |
|BIG-IQ Centralized+------+----------+----------+           |      |Linux     |
|Management        |5.x   |5.0.0 -   |None      |Medium     |6.5   |kernel    |
|                  |      |5.4.0     |          |           |      |          |
|                  +------+----------+----------+           |      |          |
|                  |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|           |      |          |
+------------------+------+----------+----------+-----------+------+----------+

^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.

^2The 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 - 14.x) and K13092: Overview of securing access to
the BIG-IP system.

Supplemental Information

o K54170502: Linux kernel vulnerability CVE-2017-8890
  o K51812227: Understanding Security Advisory versioning
  o K41942608: Overview of Security Advisory articles
  o K4602: Overview of the F5 security vulnerability response policy
  o K4918: Overview of the F5 critical issue hotfix policy
  o K9502: BIG-IP hotfix and point release matrix
  o K167: Downloading software and firmware from F5
  o K9970: Subscribing to email notifications regarding F5 products
  o K9957: Creating a custom RSS feed to view new and updated documents

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