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             AUSCERT External Security Bulletin Redistribution

                FRF.16 parser vulnerability CVE-2018-14468
                              5 November 2019


        AusCERT Security Bulletin Summary

Product:           F5 products
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Access Privileged Data -- Remote/Unauthenticated
                   Denial of Service      -- Remote/Unauthenticated
Resolution:        Mitigation
CVE Names:         CVE-2018-14468  

Reference:         ESB-2019.3840

Original Bulletin: 

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K04367730:FRF.16 parser vulnerability CVE-2018-14468

Security Advisory

Original Publication Date: 05 Nov, 2019

Security Advisory Description

The FRF.16 parser in tcpdump before 4.9.3 has a buffer over-read in
print-fr.c:mfr_print(). (CVE-2018-14468)


When tcpdump is active and configured to parse FRF.16 traffic, certain traffic
patterns may trigger a crash or other unexpected behavior of the tcpdump 

Security Advisory Status

F5 Product Development has assigned ID 842829 (BIG-IP), ID 845381, 845421
(BIG-IQ), and ID 843873 (Enterprise Manager) 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 -  |Not       |        |      |          |
|                     |      |15.0.1    |applicable|        |      |          |
|                     +------+----------+----------+        |      |          |
|                     |14.x  |14.0.0 -  |Not       |        |      |          |
|BIG-IP (LTM, AAM,    |      |14.1.2    |applicable|        |      |          |
|AFM, Analytics, APM, +------+----------+----------+        |      |          |
|ASM, DNS, Edge       |13.x  |13.1.0 -  |Not       |Medium  |5.4   |tcpdump   |
|Gateway, FPS, GTM,   |      |13.1.3    |applicable|        |      |          |
|Link Controller, PEM,+------+----------+----------+        |      |          |
|WebAccelerator)      |12.x  |12.1.0 -  |Not       |        |      |          |
|                     |      |12.1.5    |applicable|        |      |          |
|                     +------+----------+----------+        |      |          |
|                     |11.x  |11.6.0 -  |Not       |        |      |          |
|                     |      |11.6.5    |applicable|        |      |          |
|Enterprise Manager   |3.x   |3.1.1     |Not       |Medium  |5.4   |tcpdump   |
|                     |      |          |applicable|        |      |          |
|                     |7.x   |7.0.0     |Not       |        |      |          |
|                     |      |          |applicable|        |      |          |
|                     +------+----------+----------+        |      |          |
|BIG-IQ Centralized   |6.x   |6.0.0 -   |Not       |Medium  |5.4   |tcpdump   |
|Management           |      |6.1.0     |applicable|        |      |          |
|                     +------+----------+----------+        |      |          |
|                     |5.x   |5.2.0 -   |Not       |        |      |          |
|                     |      |5.4.0     |applicable|        |      |          |
|F5 iWorkflow         |2.x   |2.3.0     |Not       |Medium  |5.4   |tcpdump   |
|                     |      |          |applicable|        |      |          |
|Traffix SDC          |5.x   |5.0.0 -   |Not       |Medium^2|5.4   |tcpdump   |
|                     |      |5.1.0     |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 tcpdump utility is not
installed 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.


For the Traffix SDC product, to mitigate this vulnerability, you can update the
tcpdump package to the latest version (4.9.3 or later).

Impact of action: Performing the recommended action should not have a negative
impact on your system.

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 K15106: Managing BIG-IQ product hotfixes
  o K15113: BIG-IQ hotfix and point release matrix
  o K48955220: Installing an OPSWAT Endpoint Security update on BIG-IP APM
    systems (11.4.x and later)
  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
  o K21232150: Considerations for upgrading BIG-IQ or F5 iWorkflow systems

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