Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2019.0284
K55101404: TMM vulnerability CVE-2019-6590
31 January 2019
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: F5 BIG-IP TMM
Publisher: F5 Networks
Operating System: Network Appliance
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-6590
Original Bulletin:
https://support.f5.com/csp/article/K55101404
- --------------------------BEGIN INCLUDED TEXT--------------------
K55101404: TMM vulnerability CVE-2019-6590
Security Advisory
Original Publication Date: Jan 30, 2019
Applies to (see versions):
o Product: BIG-IQ, BIG-IQ Centralized Management
o 6.1.0, 6.0.1, 6.0.0, 5.4.0, 5.3.0, 5.2.0, 5.1.0, 5.0.0
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 FPS, BIG-IP GTM, BIG-IP
Link Controller, BIG-IP LTM, BIG-IP PEM, BIG-IP WebAccelerator
o 14.1.0, 14.0.0, 13.1.1, 13.1.0, 13.0.1, 13.0.0, 12.1.4, 12.1.3, 12.1.2,
12.1.1, 12.1.0, 11.6.3, 11.6.2, 11.6.1, 11.5.8, 11.5.7, 11.5.6, 11.5.5,
11.5.4, 11.5.3, 11.5.2, 11.5.1
o Product: Enterprise Manager
o 3.1.1
o Product: F5 iWorkflow
o 2.3.0
o Product: Traffix SDC
o 5.1.0, 5.0.0, 4.4.0
Security Advisory Description
Under certain conditions, the TMM may consume excessive resources when
processing SSL Session ID Persistence traffic. (CVE-2019-6590)
Impact
BIG-IP
This vulnerability may result as a denial-of-service (DOS) attack on the
affected BIG-IP system when the system consumes excessive memory resources.
This issue affects only BIG-IP systems provisioned with the LTM module. The
affected BIG-IP system temporarily fails to process traffic as it recovers from
a Traffic Management Microkernel (TMM) restart, and devices configured in a
device group may fail over.
Enterprise Manager / BIG-IQ / iWorkflow / Traffix SDC
There is no impact for these F5 products as they are not affected by this
vulnerability.
Security Advisory Status
F5 Product Development has assigned ID 661828 (BIG-IP) 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 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 | | |or feature|
| | |vulnerable| | | | |
+------------------+------+----------+----------+-----------+------+----------+
| |14.x |None |Not | | | |
| | | |applicable| | | |
| +------+----------+----------+ | | |
| |13.x |13.0.0 - |13.1.0 | | | |
| | |13.0.1 | | | | |
|BIG-IP (LTM) +------+----------+----------+Medium |5.3 |TMM |
| |12.x |12.1.0 - |12.1.3.7 | | | |
| | |12.1.3 | | | | |
| +------+----------+----------+ | | |
| |11.x |11.5.1 - |None | | | |
| | |11.6.3 | | | | |
+------------------+------+----------+----------+-----------+------+----------+
| |14.x |None |Not | | | |
| | | |applicable| | | |
|BIG-IP (AAM, AFM, +------+----------+----------+ | | |
|Analytics, APM, |13.x |None |Not | | | |
|ASM, DNS, Edge | | |applicable|Not | | |
|Gateway, FPS, GTM,+------+----------+----------+vulnerable^|None |None |
|Link Controller, |12.x |None |Not |1 | | |
|PEM, | | |applicable| | | |
|WebAccelerator) +------+----------+----------+ | | |
| |11.x |None |Not | | | |
| | | |applicable| | | |
+------------------+------+----------+----------+-----------+------+----------+
|Enterprise Manager|3.x |None |Not |Not |None |None |
| | | |applicable|vulnerable | | |
+------------------+------+----------+----------+-----------+------+----------+
| |6.x |None |Not | | | |
|BIG-IQ Centralized| | |applicable|Not | | |
|Management +------+----------+----------+vulnerable |None |None |
| |5.x |None |Not | | | |
| | | |applicable| | | |
+------------------+------+----------+----------+-----------+------+----------+
|F5 iWorkflow |2.x |None |Not |Not |None |None |
| | | |applicable|vulnerable | | |
+------------------+------+----------+----------+-----------+------+----------+
| |5.x |None |Not | | | |
| | | |applicable|Not | | |
|Traffix SDC +------+----------+----------+vulnerable |None |None |
| |4.x |None |Not | | | |
| | | |applicable| | | |
+------------------+------+----------+----------+-----------+------+----------+
^1 The specified products contain the affected code. However, F5 identifies the
vulnerability status as Not vulnerable because the attacker cannot exploit the
code 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.
Mitigation
To avoid this vulnerability, you can use an alternative persistence type such
as source address affinity if your application environment permits.
Impact of action: Depending on your application environment, using an
alternative persistence type may cause the system to distribute and persist
connections unevenly across multiple pool members. F5 recommends that you test
such changes in an appropriate environment.
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 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
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=t6vE
-----END PGP SIGNATURE-----