ESB-2018.3888 - [Appliance] F5 Products: Denial of service - Existing account 2018-12-17

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.3888
       K29241247: GNU C Library (glibc) vulnerability CVE-2015-8984
                             17 December 2018

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

Product:           F5 Products
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2015-8984  

Reference:         ESB-2018.0151
                   ESB-2017.0768

Original Bulletin: 
   https://support.f5.com/csp/article/K29241247

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K29241247: GNU C Library (glibc) vulnerability CVE-2015-8984

Security Advisory


Original Publication Date: Apr 27, 2017
Updated Date: Dec 15, 2018

Applies to (see versions):

  o Product: BIG-IQ, BIG-IQ Centralized Management
      o 5.1.0, 5.0.0, 4.6.0, 4.5.0, 4.4.0
  o Product: BIG-IP, BIG-IP AAM, BIG-IP AFM, BIG-IP Analytics, BIG-IP APM,
    BIG-IP ASM, BIG-IP DNS, BIG-IP Edge Gateway, BIG-IP GTM, BIG-IP Link
    Controller, BIG-IP LTM, BIG-IP PEM, BIG-IP PSM, BIG-IP WebAccelerator
      o 14.1.0, 14.0.0, 13.0.0, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.1, 11.6.0,
        11.5.4, 11.5.3, 11.5.2, 11.5.1, 11.5.0, 11.4.1, 11.4.0, 11.2.1
  o Product: Enterprise Manager
      o 3.1.1
  o Product: F5 iWorkflow
      o 2.1.0, 2.0.2, 2.0.1, 2.0.0
  o Product: F5 WebSafe
      o 1.0.0
  o Product: Traffix SDC
      o 5.1.0, 4.4.0, 4.0.5, 4.0.2, 4.0.0
  o Product: Legacy Products, ARX, BIG-IQ ADC, BIG-IQ Cloud, BIG-IQ Device,
    BIG-IQ Security, LineRate
      o 6.4.0, 6.3.0, 6.2.0, 5.1.0, 5.0.0, 4.6.0, 4.5.0, 4.4.0, 2.6.2, 2.6.1,
        2.6.0, 2.5.3, 2.5.2, 2.5.1, 2.5.0
  o Product: BIG-IQ Cloud and Orchestration
      o 1.0.0

Security Advisory Description

The fnmatch function in the GNU C Library (aka glibc or libc6) before 2.22
might allow context-dependent attackers to cause a denial of service
(application crash) via a malformed pattern, which triggers an out-of-bounds
read. (CVE-2015-8984)

Impact

An attacker with administrative command line access may be able to exploit the
flaw in the fnmatch function to cause a denial of service (DoS).

Security Advisory Status

F5 Product Development has assigned ID 655726 (BIG-IP), ID 656780 (BIG-IQ), ID
656777 (Enterprise Manager), ID 659970 (F5 iWorkflow), ID 476571 (ARX), and IDs
CPF-23725, CPF-23726, and CPF-23727 (Traffix) to this vulnerability.

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.

+---------------+----------------+-----------------+----------+----------------+
|               |Versions known  |Versions known to|          |Vulnerable      |
|Product        |to be vulnerable|be not vulnerable|Severity  |component or    |
|               |                |                 |          |feature         |
+---------------+----------------+-----------------+----------+----------------+
|               |14.0.0          |                 |          |                |
|               |13.0.0          |                 |          |                |
|BIG-IP LTM     |12.0.0 - 12.1.2 |14.1.0           |Low       |glibc           |
|               |11.4.0 - 11.6.1 |                 |          |                |
|               |11.2.1          |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |14.0.0          |                 |          |                |
|BIG-IP AAM     |13.0.0          |14.1.0           |Low       |glibc           |
|               |12.0.0 - 12.1.2 |                 |          |                |
|               |11.4.0 - 11.6.1 |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |14.0.0          |                 |          |                |
|BIG-IP AFM     |13.0.0          |14.1.0           |Low       |glibc           |
|               |12.0.0 - 12.1.2 |                 |          |                |
|               |11.4.0 - 11.6.1 |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |14.0.0          |                 |          |                |
|BIG-IP         |13.0.0          |                 |          |                |
|Analytics      |12.0.0 - 12.1.2 |14.1.0           |Low       |glibc           |
|               |11.4.0 - 11.6.1 |                 |          |                |
|               |11.2.1          |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |14.0.0          |                 |          |                |
|               |13.0.0          |                 |          |                |
|BIG-IP APM     |12.0.0 - 12.1.2 |14.1.0           |Low       |glibc           |
|               |11.4.0 - 11.6.1 |                 |          |                |
|               |11.2.1          |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |14.0.0          |                 |          |                |
|               |13.0.0          |                 |          |                |
|BIG-IP ASM     |12.0.0 - 12.1.2 |14.1.0           |Low       |glibc           |
|               |11.4.0 - 11.6.1 |                 |          |                |
|               |11.2.1          |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |14.0.0          |                 |          |                |
|BIG-IP DNS     |13.0.0          |14.1.0           |Low       |glibc           |
|               |12.0.0 - 12.1.2 |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP Edge    |11.2.1          |None             |Low       |glibc           |
|Gateway        |                |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP GTM     |11.4.0 - 11.6.1 |None             |Low       |glibc           |
|               |11.2.1          |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |14.0.0          |                 |          |                |
|BIG-IP Link    |13.0.0          |                 |          |                |
|Controller     |12.0.0 - 12.1.2 |14.1.0           |Low       |glibc           |
|               |11.4.0 - 11.6.1 |                 |          |                |
|               |11.2.1          |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |14.0.0          |                 |          |                |
|BIG-IP PEM     |13.0.0          |14.1.0           |Low       |glibc           |
|               |12.0.0 - 12.1.2 |                 |          |                |
|               |11.4.0 - 11.6.1 |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP PSM     |11.4.0 - 11.4.1 |None             |Low       |glibc           |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP         |11.2.1          |None             |Low       |glibc           |
|WebAccelerator |                |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|               |14.0.0          |                 |          |                |
|BIG-IP WebSafe |13.0.0          |14.1.0           |Low       |glibc           |
|               |12.0.0 - 12.1.2 |                 |          |                |
|               |11.6.0 - 11.6.1 |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|ARX            |6.2.0 - 6.4.0   |None             |Low       |glibc           |
+---------------+----------------+-----------------+----------+----------------+
|Enterprise     |3.1.1           |None             |Low       |glibc           |
|Manager        |                |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Cloud   |4.4.0 - 4.5.0   |None             |Low       |glibc           |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Device  |4.4.0 - 4.5.0   |None             |Low       |glibc           |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Security|4.4.0 - 4.5.0   |None             |Low       |glibc           |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ ADC     |4.5.0           |None             |Low       |glibc           |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ         |5.0.0 - 5.1.0   |                 |          |                |
|Centralized    |4.6.0           |None             |Low       |glibc           |
|Management     |                |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Cloud   |                |                 |          |                |
|and            |1.0.0           |None             |Low       |glibc           |
|Orchestration  |                |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+
|F5 iWorkflow   |2.0.0 - 2.1.0   |None             |Low       |glibc           |
+---------------+----------------+-----------------+----------+----------------+
|LineRate       |None            |2.5.0 - 2.6.2    |Not       |None            |
|               |                |                 |vulnerable|                |
+---------------+----------------+-----------------+----------+----------------+
|Traffix SDC    |5.0.0 - 5.1.0   |None             |Low       |glibc           |
|               |4.0.0 - 4.4.0   |                 |          |                |
+---------------+----------------+-----------------+----------+----------------+

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 Versions known to be not vulnerable 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 should permit management access to F5
products only over a secure network and restrict command line access for
affected systems to only trusted users. For more information about restricting
access to the BIG-IP and Enterprise Manager systems, refer to K13092: Overview
of securing access to the BIG-IP system.

Supplemental Information

  o K21232150: Considerations for upgrading BIG-IQ or F5 iWorkflow systems
  o K9970: Subscribing to email notifications regarding F5 products
  o K9957: Creating a custom RSS feed to view new and updated documents
  o K4602: Overview of the F5 security vulnerability response policy

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