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AUSCERT External Security Bulletin Redistribution
ESB-2019.4243
OpenSSH vulnerability CVE-2016-10708
12 November 2019
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: F5 products
Publisher: F5 Networks
Operating System: Network Appliance
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2016-10708
Reference: ESB-2018.3477
ESB-2018.3326
ESB-2018.2713
Original Bulletin:
https://support.f5.com/csp/article/K32485746
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K32485746:OpenSSH vulnerability CVE-2016-10708
Security Advisory
Original Publication Date: 12 Apr, 2018
Latest Publication Date: 12 Nov, 2019
Security Advisory Description
sshd in OpenSSH before 7.4 allows remote attackers to cause a denial of service
(NULL pointer dereference and daemon crash) via an out-of-sequence NEWKEYS
message, as demonstrated by Honggfuzz, related to kex.c and packet.c. (
CVE-2016-10708)
Impact
This vulnerability allows a remote attacker to disrupt service.
Security Advisory Status
F5 Product Development has assigned ID 712608 (BIG-IP), ID 712649 (BIG-IQ and
F5 iWorkflow), ID 712648 (Enterprise Manager), and ID 431179 (ARX) to this
vulnerability. Additionally, BIG-IP iHealth may list Heuristic H32485746 on the
Diagnostics > Identified > Medium page.
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 or hotfixes that
address the vulnerability, refer to the following table.
+---------------------+------+----------+----------+--------+------+----------+
| | |Versions |Fixes | |CVSSv3|Vulnerable|
|Product |Branch|known to |introduced|Severity|score^|component |
| | |be |in | |1 |or feature|
| | |vulnerable| | | | |
+---------------------+------+----------+----------+--------+------+----------+
| |15.x |None |Not | | | |
| | | |applicable| | | |
| +------+----------+----------+ | | |
|BIG-IP (LTM, AAM, |14.x |14.0.0 - |14.1.0 | | | |
|AFM, Analytics, APM, | |14.0.1 | | | | |
|ASM, DNS, Edge +------+----------+----------+ | | |
|Gateway, GTM, Link |13.x |13.1.0 - |None |Medium |5.3 |OpenSSH |
|Controller, PEM, | |13.1.3 | | | | |
|WebAccelerator, +------+----------+----------+ | | |
|WebSafe) |12.x |12.1.0 - |None | | | |
| | |12.1.5 | | | | |
| +------+----------+----------+ | | |
| |11.x |11.2.1 - |None | | | |
| | |11.6.5 | | | | |
+---------------------+------+----------+----------+--------+------+----------+
|ARX |6.x |6.2.0 - |None |Medium |5.3 |OpenSSH |
| | |6.4.0 | | | | |
+---------------------+------+----------+----------+--------+------+----------+
|Enterprise Manager |3.x |3.1.1 |None |Medium |5.3 |OpenSSH |
+---------------------+------+----------+----------+--------+------+----------+
| |5.x |5.0.0 - |None | | | |
|BIG-IQ Centralized | |5.4.0 | |Medium |5.3 |OpenSSH |
|Management +------+----------+----------+ | | |
| |4.x |4.6.0 |None | | | |
+---------------------+------+----------+----------+--------+------+----------+
|BIG-IQ Cloud and |1.x |1.0.0 |None |Medium |5.3 |OpenSSH |
|Orchestration | | | | | | |
+---------------------+------+----------+----------+--------+------+----------+
|F5 iWorkflow |2.x |2.0.2 - |None |Medium |5.3 |OpenSSH |
| | |2.3.0 | | | | |
+---------------------+------+----------+----------+--------+------+----------+
|LineRate |2.x |2.5.0 - |None |Medium |5.3 |OpenSSH |
| | |2.6.2 | | | | |
+---------------------+------+----------+----------+--------+------+----------+
| |5.x |5.0.0 - |None | | | |
| | |5.1.0 | | | | |
|Traffix SDC +------+----------+----------+Medium |5.3 |OpenSSH |
| |4.x |4.0.5 - |None | | | |
| | |4.4.0 | | | | |
+---------------------+------+----------+----------+--------+------+----------+
^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.
Mitigation
None
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 - 13.x)
o K15106: Managing BIG-IQ product hotfixes
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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