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             AUSCERT External Security Bulletin Redistribution

                     Multiple tcpdump vulnerabilities
                              21 January 2021


        AusCERT Security Bulletin Summary

Product:           tcpdump
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
Resolution:        Mitigation
CVE Names:         CVE-2019-15166 CVE-2018-16452 CVE-2018-16451
                   CVE-2018-16300 CVE-2018-16230 CVE-2018-16229
                   CVE-2018-16228 CVE-2018-16227 CVE-2018-14882
                   CVE-2018-14881 CVE-2018-10105 CVE-2018-10103

Reference:         ESB-2019.3840

Original Bulletin: 

Revision History:  January  21 2021: Vendor updated with 16.x branch details
                   November 12 2019: Initial Release

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K44551633: Multiple tcpdump vulnerabilities

Original Publication Date: 12 Nov, 2019
Latest   Publication Date: 20 Jan, 2021

Security Advisory Description

o CVE-2018-10103

    tcpdump before 4.9.3 mishandles the printing of SMB data (issue 1 of 2).

  o CVE-2018-10105

    tcpdump before 4.9.3 mishandles the printing of SMB data (issue 2 of 2).

  o CVE-2018-14882

    The ICMPv6 parser in tcpdump before 4.9.3 has a buffer over-read in

  o CVE-2019-15166

    lmp_print_data_link_subobjs() in print-lmp.c in tcpdump before 4.9.3 lacks
    certain bounds checks. 

  o CVE-2018-16230

    The BGP parser in tcpdump before 4.9.3 has a buffer over-read in
    print-bgp.c:bgp_attr_print() (MP_REACH_NLRI).

  o CVE-2018-16300

    The BGP parser in tcpdump before 4.9.3 allows stack consumption in
    print-bgp.c:bgp_attr_print() because of unlimited recursion.

  o CVE-2018-14881

    The BGP parser in tcpdump before 4.9.3 has a buffer over-read in
    print-bgp.c:bgp_capabilities_print() (BGP_CAPCODE_RESTART). 

  o CVE-2018-16229

    The DCCP parser in tcpdump before 4.9.3 has a buffer over-read in

  o CVE-2018-16228

    The HNCP parser in tcpdump before 4.9.3 has a buffer over-read in

  o CVE-2018-16227

    The IEEE 802.11 parser in tcpdump before 4.9.3 has a buffer over-read in
    print-802_11.c for the Mesh Flags subfield.

  o CVE-2018-16451

    The SMB parser in tcpdump before 4.9.3 has buffer over-reads in
    print-smb.c:print_trans() for \MAILSLOT\BROWSE and \PIPE\LANMAN.

  o CVE-2018-16452

    The SMB parser in tcpdump before 4.9.3 has stack exhaustion in
    smbutil.c:smb_fdata() via recursion.


These vulnerabilities can result in denial of service (DoS) or, potentially,
execution of arbitrary code.

Security Advisory Status

F5 Product Development has assigned ID 842829 (BIG-IP, BIG-IQ, Enterprise
Manager, and F5 iWorkflow) and ID CPF-25158 (Traffix SDC) to this

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 -  |None      |        |      |          |
|                     |      |15.1.2    |          |        |      |          |
|                     +------+----------+----------+        |      |          |
|BIG-IP (LTM, AAM,    |14.x  |14.0.0 -  |  |        |      |          |
|AFM, Analytics, APM, |      |14.1.3    |          |        |      |          |
|ASM, DNS, Edge       +------+----------+----------+Medium  |6.5   |tcpdump   |
|Gateway, FPS, GTM,   |13.x  |13.1.0 -  |None      |        |      |          |
|Link Controller, PEM,|      |13.1.3    |          |        |      |          |
|WebAccelerator)      +------+----------+----------+        |      |          |
|                     |12.x  |12.1.0 -  |None      |        |      |          |
|                     |      |12.1.5    |          |        |      |          |
|                     +------+----------+----------+        |      |          |
|                     |11.x  |11.5.2 -  |None      |        |      |          |
|                     |      |11.6.5    |          |        |      |          |
|Enterprise Manager   |3.x   |3.1.1     |None      |Medium  |6.5   |tcpdump   |
|                     |7.x   |7.0.0     |None      |        |      |          |
|                     +------+----------+----------+        |      |          |
|BIG-IQ Centralized   |6.x   |6.0.0 -   |None      |        |      |          |
|Management           |      |6.1.0     |          |Medium  |6.5   |tcpdump   |
|                     +------+----------+----------+        |      |          |
|                     |5.x   |5.2.0 -   |None      |        |      |          |
|                     |      |5.4.0     |          |        |      |          |
|F5 iWorkflow         |2.x   |2.3.0     |None      |Medium  |6.5   |tcpdump   |
|Traffix SDC          |5.x   |5.0.0 -   |None      |Medium  |5.4   |tcpdump   |
|                     |      |5.1.0     |          |        |      |          |

^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.


To avoid this vulnerability, F5 recommends that you perform tcpdump during
troubleshooting sessions and avoid running it unattended for a long duration of

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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