ESB-2018.1872.3 - UPDATE [Appliance] F5 BIG-IP APM: Denial of service - Remote/unauthenticated 2018-06-29

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             AUSCERT External Security Bulletin Redistribution

                              ESB-2018.1872.3
                  F5 BIG-IP ARM denial of service patched
                               29 June 2018

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

Product:           F5 BIG-IP APM
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-5528  

Original Bulletin: 
   https://support.f5.com/csp/article/K27044729

Revision History:  June 29 2018: More information has been provided about the CVE.
                   June 28 2018: Corrected duplicate bulletin ID
                   June 27 2018: Initial Release

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K27044729: TMM vulnerability CVE-2018-5528

Security Advisory

Original Publication Date: Jun 27, 2018

Security Advisory Description

Under certain conditions, the Traffic Management Microkernel (TMM) may restart
and produce a core file while processing BIG-IP APM data. (CVE-2018-5528)

Impact

This vulnerability allows remote attackers to cause a denial of service (DoS)
on the BIG-IP system. The BIG-IP system will temporarily fail to process
traffic as it recovers from a TMM restart, and devices configured in a device
group may fail over.

Security Advisory Status

F5 Product Development has assigned ID 717900 (BIG-IP) 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        |           |1     |or feature|
|                  |      |vulnerable|          |           |      |          |
|------------------+------+----------+----------+-----------+------+----------|
|                  |      |13.1.0.4 -|          |           |      |          |
|                  |13.x  |13.1.0.7  |13.1.0.8  |           |      |          |
|                  |      |13.0.1    |          |           |      |          |
|                  |------+----------+----------|           |      |          |
|BIG-IP (APM)      |12.x  |None      |Not       |Medium     |6.5   |APM       |
|                  |      |          |applicable|           |      |          |
|                  |------+----------+----------|           |      |          |
|                  |11.x  |None      |Not       |           |      |          |
|                  |      |          |applicable|           |      |          |
|------------------+------+----------+----------+-----------+------+----------|
|BIG-IP (LTM, AAM, |13.x  |None      |Not       |           |      |          |
|AFM, Analytics,   |      |          |applicable|           |      |          |
|ASM, DNS, Edge    |------+----------+----------|Not        |      |          |
|Gateway, FPS, GTM,|12.x  |None      |Not       |vulnerable^|None  |None      |
|Link Controller,  |      |          |applicable|2          |      |          |
|PEM,              |------+----------+----------|           |      |          |
|WebAccelerator)   |11.x  |None      |Not       |           |      |          |
|                  |      |          |applicable|           |      |          |
|------------------+------+----------+----------+-----------+------+----------|
|ARX               |6.x   |None      |Not       |Not        |None  |None      |
|                  |      |          |applicable|vulnerable |      |          |
|------------------+------+----------+----------+-----------+------+----------|
|                  |      |          |Not       |Not        |      |          |
|Enterprise Manager|3.x   |None      |applicable|vulnerable^|None  |None      |
|                  |      |          |          |2          |      |          |
|------------------+------+----------+----------+-----------+------+----------|
|                  |6.x   |None      |Not       |           |      |          |
|                  |      |          |applicable|           |      |          |
|                  |------+----------+----------|Not        |      |          |
|BIG-IQ Centralized|5.x   |None      |Not       |vulnerable^|None  |None      |
|Management        |      |          |applicable|2          |      |          |
|                  |------+----------+----------|           |      |          |
|                  |4.x   |None      |Not       |           |      |          |
|                  |      |          |applicable|           |      |          |
|------------------+------+----------+----------+-----------+------+----------|
|BIG-IQ Cloud and  |      |          |Not       |Not        |      |          |
|Orchestration     |1.x   |None      |applicable|vulnerable^|None  |None      |
|                  |      |          |          |2          |      |          |
|------------------+------+----------+----------+-----------+------+----------|
|                  |      |          |Not       |Not        |      |          |
|F5 iWorkflow      |2.x   |None      |applicable|vulnerable^|None  |None      |
|                  |      |          |          |2          |      |          |
|------------------+------+----------+----------+-----------+------+----------|
|LineRate          |2.x   |None      |Not       |Not        |None  |None      |
|                  |      |          |applicable|vulnerable |      |          |
|------------------+------+----------+----------+-----------+------+----------|
|                  |5.x   |None      |Not       |           |      |          |
|                  |      |          |applicable|Not        |      |          |
|Traffix SDC       |------+----------+----------|vulnerable |None  |None      |
|                  |4.x   |None      |Not       |           |      |          |
|                  |      |          |applicable|           |      |          |
+-----------------------------------------------------------------------------+

^1 The CVSSv3 score link takes you to a resource outside of AskF5, and it is
possible that the document may be removed without our knowledge.

^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 configurations.

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

None

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