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AUSCERT External Security Bulletin Redistribution
ESB-2017.2670
K20145801: Mozilla NSS vulnerability CVE-2016-197
24 October 2017
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AusCERT Security Bulletin Summary
---------------------------------
Product: F5 products
Publisher: F5 Networks
Operating System: Network Appliance
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2016-1979
Reference: ASB-2016.0062
ESB-2016.0856
ESB-2016.0820
ESB-2016.0767
Original Bulletin:
https://support.f5.com/csp/article/K20145801
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K20145801: Mozilla NSS vulnerability CVE-2016-1979
Security Advisory
Original Publication Date: Apr 19, 2016
Updated Date: Oct 21, 2017
Security Advisory Description
Use-after-free vulnerability in the PK11_ImportDERPrivateKeyInfoAndReturnKey
function in Mozilla Network Security Services (NSS) before 3.21.1, as used in
Mozilla Firefox before 45.0, allows remote attackers to cause a denial of
service or possibly have unspecified other impact via crafted key data with DER
encoding. (CVE-2016-1979)
Impact
When this vulnerability is exploited, an attacker may be able to cause a
denial-of-service (DoS) attack on the system. While this vulnerable code exists
in BIG-IP, BIG-IQ, and Enterprise Manager products, the default standard
configuration does not use the code in a way that makes this issue exploitable.
Under rare circumstances, if the BIG-IP system is configured with a custom
monitor that calls external scripts, and the external scripts use the
vulnerable NSS libraries, then the BIG-IP system may be exposed to this
vulnerability.
Security Advisory Status
F5 Product Development has assigned IDs 585424 and 585502 (BIG-IP), ID 585449
(BIG-IQ), and ID 585451 (Enterprise Manager) to this vulnerability, and has
evaluated the currently supported releases for potential vulnerability.
Additionally, BIG-IP iHealth may list Heuristic H588040 on the Diagnostics >
Identified > Medium screen.
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 |
+---------------+----------------+-----------------+----------+----------------+
| |12.0.0 - 12.1.1 |13.0.0 | | |
|BIG-IP LTM |11.0.0 - 11.6.1 |12.1.2 |Medium |NSS libraries |
| |10.1.0 - 10.2.4 |11.6.1 HF1 | | |
+---------------+----------------+-----------------+----------+----------------+
| |12.0.0 - 12.1.1 |13.0.0 | | |
|BIG-IP AAM |11.4.0 - 11.6.1 |12.1.2 |Medium |NSS libraries |
| | |11.6.1 HF1 | | |
+---------------+----------------+-----------------+----------+----------------+
| |12.0.0 - 12.1.1 |13.0.0 | | |
|BIG-IP AFM |11.3.0 - 11.6.1 |12.1.2 |Medium |NSS libraries |
| | |11.6.1 HF1 | | |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP |12.0.0 - 12.1.1 |13.0.0 | | |
|Analytics |11.0.0 - 11.6.1 |12.1.2 |Medium |NSS libraries |
| | |11.6.1 HF1 | | |
+---------------+----------------+-----------------+----------+----------------+
| |12.0.0 - 12.1.1 |13.0.0 | | |
|BIG-IP APM |11.0.0 - 11.6.1 |12.1.2 |Medium |NSS libraries |
| |10.1.0 - 10.2.4 |11.6.1 HF1 | | |
+---------------+----------------+-----------------+----------+----------------+
| |12.0.0 - 12.1.1 |13.0.0 | | |
|BIG-IP ASM |11.0.0 - 11.6.1 |12.1.2 |Medium |NSS libraries |
| |10.1.0 - 10.2.4 |11.6.1 HF1 | | |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP DNS |12.0.0 - 12.1.1 |13.0.0 |Medium |NSS libraries |
| | |12.1.2 | | |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP Edge |11.0.0 - 11.3.0 |None |Medium |NSS libraries |
|Gateway |10.1.0 - 10.2.4 | | | |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP GTM |11.0.0 - 11.6.1 |11.6.1 HF1 |Medium |NSS libraries |
| |10.1.0 - 10.2.4 | | | |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP Link |12.0.0 - 12.1.1 |13.0.0 | | |
|Controller |11.0.0 - 11.6.1 |12.1.2 |Medium |NSS libraries |
| |10.1.0 - 10.2.4 |11.6.1 HF1 | | |
+---------------+----------------+-----------------+----------+----------------+
| |12.0.0 - 12.1.1 |13.0.0 | | |
|BIG-IP PEM |11.3.0 - 11.6.1 |12.1.2 |Medium |NSS libraries |
| | |11.6.1 HF1 | | |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP PSM |11.0.0 - 11.4.1 |None |Medium |NSS libraries |
| |10.1.0 - 10.2.4 | | | |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP |11.0.0 - 11.3.0 |None |Medium |NSS libraries |
|WebAccelerator |10.1.0 - 10.2.4 | | | |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP WOM |11.0.0 - 11.3.0 |None |Medium |NSS libraries |
| |10.1.0 - 10.2.4 | | | |
+---------------+----------------+-----------------+----------+----------------+
|ARX |None |6.0.0 - 6.4.0 |Not |None |
| | | |vulnerable| |
+---------------+----------------+-----------------+----------+----------------+
|Enterprise |3.0.0 - 3.1.1 |None |Medium |NSS libraries |
|Manager | | | | |
+---------------+----------------+-----------------+----------+----------------+
|FirePass |None |7.0.0 |Not |None |
| | |6.0.0 - 6.1.0 |vulnerable| |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Cloud |4.0.0 - 4.5.0 |None |Medium |NSS libraries |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Device |4.2.0 - 4.5.0 |None |Medium |NSS libraries |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Security|4.0.0 - 4.5.0 |None |Medium |NSS libraries |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ ADC |4.5.0 |None |Medium |NSS libraries |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ | | | | |
|Centralized |4.6.0 |None |Medium |NSS libraries |
|Management | | | | |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Cloud | | | | |
|and |1.0.0 |None |Medium |NSS libraries |
|Orchestration | | | | |
+---------------+----------------+-----------------+----------+----------------+
|LineRate |None |2.5.0 - 2.6.1 |Not |None |
| | | |vulnerable| |
+---------------+----------------+-----------------+----------+----------------+
|F5 WebSafe |None |1.0.0 |Not |None |
| | | |vulnerable| |
+---------------+----------------+-----------------+----------+----------------+
|Traffix SDC |None |4.0.0 - 4.4.0 |Not |None |
| | |3.3.2 - 3.5.1 |vulnerable| |
+---------------+----------------+-----------------+----------+----------------+
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.
To determine the necessary upgrade path for your BIG-IQ system, you should
understand the BIG-IQ product offering name changes. For more information,
refer to K21232150: Considerations for upgrading BIG-IQ or F5 iWorkflow systems.
Mitigation
None
Supplemental Information
o K9970: Subscribing to email notifications regarding F5 products
o K9957: Creating a custom RSS feed to view new and updated documents
o K4918: Overview of the F5 critical issue hotfix policy
o K4602: Overview of the F5 security vulnerability response policy
o K167: Downloading software and firmware from F5
o K13123: Managing BIG-IP product hotfixes (11.x - 13.x)
o K9502: BIG-IP hotfix matrix
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