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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.3442
                  Wireshark vulnerability CVE-2019-12295
                             11 September 2019

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

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

Product:           F5 BIG-IP products
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-12295  

Original Bulletin: 
   https://support.f5.com/csp/article/K06725231

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K06725231:Wireshark vulnerability CVE-2019-12295

Security Advisory

Original Publication Date: 11 Sep, 2019

Security Advisory Description

In Wireshark 3.0.0 to 3.0.1, 2.6.0 to 2.6.8, and 2.4.0 to 2.4.14, the
dissection engine could crash. This was addressed in epan/packet.c by
restricting the number of layers and consequently limiting recursion. (
CVE-2019-12295)

Impact

An attacker can leverage this issue to stop the affected application and deny
service to legitimate users.

Security Advisory Status

F5 Product Development has assigned ID 818177 (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.x  |15.0.0 -  |None      |          |      |          |
|                   |      |15.0.1    |          |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |      |14.1.0 -  |          |          |      |          |
|BIG-IP (LTM, AAM,  |14.x  |14.1.2    |None      |          |      |          |
|AFM, Analytics,    |      |14.0.0.3 -|          |          |      |          |
|APM, ASM, DNS, Edge|      |14.0.1    |          |          |      |          |
|Gateway, FPS, GTM, +------+----------+----------+Low       |2.0   |Wireshark/|
|Link Controller,   |13.x  |13.1.1.2 -|None      |          |      |tshark    |
|PEM,               |      |13.1.3    |          |          |      |          |
|WebAccelerator)    +------+----------+----------+          |      |          |
|                   |12.x  |12.1.3.6 -|None      |          |      |          |
|                   |      |12.1.5    |          |          |      |          |
|                   +------+----------+----------+          |      |          |
|                   |11.x  |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|Enterprise Manager |3.x   |None      |Not       |Not       |None  |None      |
|                   |      |          |applicable|vulnerable|      |          |
+-------------------+------+----------+----------+----------+------+----------+
|                   |7.x   |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
|                   +------+----------+----------+          |      |          |
|BIG-IQ Centralized |6.x   |None      |Not       |Not       |None  |None      |
|Management         |      |          |applicable|vulnerable|      |          |
|                   +------+----------+----------+          |      |          |
|                   |5.x   |None      |Not       |          |      |          |
|                   |      |          |applicable|          |      |          |
+-------------------+------+----------+----------+----------+------+----------+
|F5 iWorkflow       |2.x   |None      |Not       |Not       |None  |None      |
|                   |      |          |applicable|vulnerable|      |          |
+-------------------+------+----------+----------+----------+------+----------+
|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:

  o When analyzing tcpdump files on the BIG-IP system, only analyze files from
    trusted sources.
  o Analyze tcpdump files on a non-F5 host.

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

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