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

                               ESB-2020.4487
                    BIG-IP APM multiple vulnerabilities
                             18 December 2020

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

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

Product:           BIG-IP APM
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Denial of Service              -- Remote/Unauthenticated      
                   Cross-site Scripting           -- Remote with User Interaction
                   Provide Misleading Information -- Remote/Unauthenticated      
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-27729 CVE-2020-27726 CVE-2020-27724
                   CVE-2020-27722 CVE-2020-27716 

Original Bulletin: 
   https://support.f5.com/csp/article/K73657294
   https://support.f5.com/csp/article/K30343902
   https://support.f5.com/csp/article/K04518313
   https://support.f5.com/csp/article/K15310332
   https://support.f5.com/csp/article/K51574311

Comment: This bulletin contains five (5) F5 Networks security advisories.

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

K73657294: BIG-IP APM VDI plugin vulnerability CVE-2020-27722

Original Publication Date: 17 Dec, 2020

Security Advisory Description

Under certain conditions, the VDI plugin does not observe plugin flow-control
protocol causing excessive resource consumption. (CVE-2020-27722)

Impact

This affects only a BIG-IP APM virtual server configured with a Virtual Desktop
Infrastructure (VDI) profile. Your BIG-IP system affected by this vulnerability
may consume excessive resources when processing VDI traffic, resulting in
Traffic Management Microkernel (TMM) restarting and generating a core file in
some cases and leading to disruption in traffic processing.

Security Advisory Status

F5 Product Development has assigned ID 811965 (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, point 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|          |          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |      |          |15.1.0    |          |      |          |
|                   |15.x  |15.0.0 -  |15.0.1.4  |          |      |          |
|                   |      |15.0.1    |          |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |14.x  |14.1.0 -  |14.1.3.1  |          |      |          |
|                   |      |14.1.3    |          |          |      |          |
|                   +------+----------+----------+          |      |VDI       |
|BIG-IP (APM)       |13.x  |13.1.0 -  |13.1.3.5  |Medium    |4.8   |plug-in   |
|                   |      |13.1.3    |          |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |12.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |11.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |15.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |14.x  |None      |Not       |          |      |          |
|BIG-IP (LTM, AAM,  |      |          |applicable|          |      |          |
|AFM, Analytics,    +------+----------+----------+          |      |          |
|ASM, DNS, FPS, GTM,|13.x  |None      |Not       |Not       |None  |None      |
|Link Controller,   |      |          |applicable|vulnerable|      |          |
|PEM)               +------+----------+----------+          |      |          |
|                   |12.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |11.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |7.x   |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|BIG-IQ Centralized |6.x   |None      |Not       |Not       |None  |None      |
|Management         |      |          |applicable|vulnerable|      |          |
|                   +------+----------+----------+          |      |          |
|                   |5.x   |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|Traffix SDC        |5.x   |None      |Not       |Not       |None  |None      |
|                   |      |          |applicable|vulnerable|      |          |
+-------------------+------+----------+----------+----------+------+----------+

^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.

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

Supplemental Information

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 K13123: Managing BIG-IP product hotfixes (11.x - 15.x)
  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

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

K30343902: BIG-IP APM XSS vulnerability CVE-2020-27726

Original Publication Date: 17 Dec, 2020

Security Advisory Description

A reflected cross-site scripting (XSS) vulnerability exists in the resource
information page for authenticated users when a full webtop is configured on
the BIG-IP APM system. (CVE-2020-27726)

Impact

An attacker can craft a malicious URL and send it to an authenticated user to
launch a XSS attack.

Security Advisory Status

F5 Product Development has assigned ID 905125 (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, point 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|          |          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |16.x  |16.0.0    |16.0.1    |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |15.x  |15.0.0 -  |15.1.1    |          |      |          |
|                   |      |15.1.0    |          |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |14.x  |14.1.0 -  |14.1.3.1  |          |      |          |
|BIG-IP (APM)       |      |14.1.3    |          |          |      |BIG-IP APM|
|                   +------+----------+----------+Medium    |4.2   |with full |
|                   |13.x  |13.1.0 -  |13.1.3.5  |          |      |webtop    |
|                   |      |13.1.3    |          |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |12.x  |12.1.0 -  |None      |          |      |          |
|                   |      |12.1.5    |          |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |11.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |15.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |14.x  |None      |Not       |          |      |          |
|BIG-IP (LTM, AAM,  |      |          |applicable|          |      |          |
|AFM, Analytics,    +------+----------+----------+          |      |          |
|ASM, DNS, FPS, GTM,|13.x  |None      |Not       |Not       |None  |None      |
|Link Controller,   |      |          |applicable|vulnerable|      |          |
|PEM)               +------+----------+----------+          |      |          |
|                   |12.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |11.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |7.x   |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|BIG-IQ Centralized |6.x   |None      |Not       |Not       |None  |None      |
|Management         |      |          |applicable|vulnerable|      |          |
|                   +------+----------+----------+          |      |          |
|                   |5.x   |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|Traffix SDC        |5.x   |None      |Not       |Not       |None  |None      |
|                   |      |          |applicable|vulnerable|      |          |
+-------------------+------+----------+----------+----------+------+----------+

^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.

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 can associate an iRule to the affected
BIG-IP APM virtual server. For more information about the iRule, contact F5
Support referencing this article number.

Supplemental Information

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 K13123: Managing BIG-IP product hotfixes (11.x - 15.x)
  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

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

K04518313: BIG-IP APM network access VPN vulnerability CVE-2020-27724

Original Publication Date: 17 Dec, 2020

Security Advisory Description

In BIG-IP APM, on systems running more than one TMM instance, authenticated VPN
users may consume excessive resources by sending specially-crafted malicious
traffic over the tunnel. (CVE-2020-27724)

Impact

This vulnerability may cause the Traffic Management Microkernel (TMM) to stop
responding, leading to disruption in services and a failover event in high
availability (HA) systems.

Security Advisory Status

F5 Product Development has assigned ID 898949 (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, point 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|          |          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |16.x  |16.0.0    |16.0.1    |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |      |15.1.0    |15.1.0.5  |          |      |          |
|                   |15.x  |15.0.0 -  |15.0.1.4  |          |      |          |
|                   |      |15.0.1    |          |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |14.x  |14.1.0 -  |14.1.3.1  |          |      |          |
|                   |      |14.1.3    |          |          |      |          |
|BIG-IP (APM)       +------+----------+----------+Medium    |5.3   |TMM       |
|                   |13.x  |13.1.0 -  |13.1.3.5  |          |      |          |
|                   |      |13.1.3    |          |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |12.x  |12.1.0 -  |None      |          |      |          |
|                   |      |12.1.5    |          |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |11.x  |11.6.1 -  |None      |          |      |          |
|                   |      |11.6.5    |          |          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |15.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |14.x  |None      |Not       |          |      |          |
|BIG-IP (LTM, AAM,  |      |          |applicable|          |      |          |
|AFM, Analytics,    +------+----------+----------+          |      |          |
|APM, ASM, DNS, FPS,|13.x  |None      |Not       |Not       |None  |None      |
|GTM, Link          |      |          |applicable|vulnerable|      |          |
|Controller, PEM)   +------+----------+----------+          |      |          |
|                   |12.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |11.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |7.x   |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|BIG-IQ Centralized |6.x   |None      |Not       |Not       |None  |None      |
|Management         |      |          |applicable|vulnerable|      |          |
|                   +------+----------+----------+          |      |          |
|                   |5.x   |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|Traffix SDC        |5.x   |None      |Not       |Not       |None  |None      |
|                   |      |          |applicable|vulnerable|      |          |
+-------------------+------+----------+----------+----------+------+----------+

^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.

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

Supplemental Information

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 K13123: Managing BIG-IP product hotfixes (11.x - 15.x)
  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

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

K15310332: BIG-IP APM open redirect vulnerability CVE-2020-27729

Original Publication Date: 17 Dec, 2020

Security Advisory Description

An undisclosed link on the BIG-IP APM virtual server allows a malicious user to
build an open redirect URI. (CVE-2020-27729)

Impact

An attacker can create a URL with a specially crafted value and trick BIG-IP
APM users into visiting the link. Victims may be redirected to a malicious
website by following the misleading URL.

Security Advisory Status

F5 Product Development has assigned ID 928037 (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, point 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|          |          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |16.x  |16.0.0    |16.0.1    |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |15.x  |15.1.0    |15.1.1    |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |14.x  |14.1.0 -  |14.1.3.1  |          |      |BIG-IP APM|
|                   |      |14.1.3    |          |          |      |virtual   |
|                   +------+----------+----------+          |      |server    |
|BIG-IP (APM)       |13.x  |13.1.0 -  |13.1.3.5  |Medium    |6.1   |with      |
|                   |      |13.1.3    |          |          |      |access    |
|                   +------+----------+----------+          |      |profile   |
|                   |12.x  |12.1.0 -  |None      |          |      |          |
|                   |      |12.1.5    |          |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |11.x  |11.6.1 -  |None      |          |      |          |
|                   |      |11.6.5    |          |          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |16.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |15.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|BIG-IP (LTM, AAM,  +------+----------+----------+          |      |          |
|Advanced WAF, AFM, |14.x  |None      |Not       |          |      |          |
|Analytics, ASM,    |      |          |applicable|Not       |      |          |
|DDHD, DNS, FPS,    +------+----------+----------+vulnerable|None  |None      |
|GTM, Link          |13.x  |None      |Not       |          |      |          |
|Controller, PEM,   |      |          |applicable|          |      |          |
|SSLO)              +------+----------+----------+          |      |          |
|                   |12.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |11.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |7.x   |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|BIG-IQ Centralized |6.x   |None      |Not       |Not       |None  |None      |
|Management         |      |          |applicable|vulnerable|      |          |
|                   +------+----------+----------+          |      |          |
|                   |5.x   |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|Traffix SDC        |5.x   |None      |Not       |Not       |None  |None      |
|                   |      |          |applicable|vulnerable|      |          |
+-------------------+------+----------+----------+----------+------+----------+

^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.

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

Acknowledgements

F5 acknowledges the Sanjay Gondaliya of NotSoSecure for bringing this issue to
our attention and for following the highest standards of coordinated
disclosure.

Supplemental Information

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 K13123: Managing BIG-IP product hotfixes (11.x - 16.x)
  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

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

K51574311: BIG-IP APM vulnerability CVE-2020-27716

Original Publication Date: 17 Dec, 2020

Security Advisory Description

When a BIG-IP APM virtual server processes traffic of an undisclosed nature,
the Traffic Management Microkernel (TMM) stops responding and restarts. (
CVE-2020-27716)

Impact

Traffic processing is disrupted while TMM restarts. If the affected BIG-IP
system is configured as part of a device group, the system triggers a failover
to the peer device.

Security Advisory Status

F5 Product Development has assigned ID 904165 (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, point 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|          |          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |16.x  |None      |16.0.0    |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |15.x  |15.0.0 -  |15.1.1    |          |      |          |
|                   |      |15.1.0    |          |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |14.x  |14.1.0 -  |14.1.3.1  |          |      |          |
|                   |      |14.1.3    |          |          |      |BIG-IP APM|
|BIG-IP (APM)       +------+----------+----------+High      |7.5   |virtual   |
|                   |13.x  |13.1.0 -  |None      |          |      |server    |
|                   |      |13.1.3    |          |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |12.x  |12.1.0 -  |None      |          |      |          |
|                   |      |12.1.5    |          |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |11.x  |11.6.1 -  |None      |          |      |          |
|                   |      |11.6.5    |          |          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |15.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |14.x  |None      |Not       |          |      |          |
|BIG-IP (LTM, AAM,  |      |          |applicable|          |      |          |
|AFM, Analytics,    +------+----------+----------+          |      |          |
|ASM, DNS, FPS, GTM,|13.x  |None      |Not       |Not       |None  |None      |
|Link Controller,   |      |          |applicable|vulnerable|      |          |
|PEM)               +------+----------+----------+          |      |          |
|                   |12.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |11.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |7.x   |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|BIG-IQ Centralized |6.x   |None      |Not       |Not       |None  |None      |
|Management         |      |          |applicable|vulnerable|      |          |
|                   +------+----------+----------+          |      |          |
|                   |5.x   |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|Traffix SDC        |5.x   |None      |Not       |Not       |None  |None      |
|                   |      |          |applicable|vulnerable|      |          |
+-------------------+------+----------+----------+----------+------+----------+

^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.

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

Acknowledgements

F5 acknowledges Nikita Abramov of Positive Technologies for bringing this issue
to our attention and following the highest standards of coordinated disclosure.

Supplemental Information

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 K13123: Managing BIG-IP product hotfixes (11.x - 16.x)
  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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