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AUSCERT External Security Bulletin Redistribution
ESB-2021.1360
Linux kernel vulnerability CVE-2017-1000365
21 April 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: BIG-IP
BIG-IQ
F5 iWorkflow
Traffix SDC
Publisher: F5 Networks
Operating System: Network Appliance
Impact/Access: Access Confidential Data -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2017-1000365
Reference: ESB-2017.2852
ESB-2017.2631
ESB-2017.2075
Original Bulletin:
https://support.f5.com/csp/article/K15412203
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K15412203: Linux kernel vulnerability CVE-2017-1000365
Original Publication Date: 12 Jul, 2017
Latest Publication Date: 20 Apr, 2021
Security Advisory Description
The Linux Kernel imposes a size restriction on the arguments and environmental
strings passed through RLIMIT_STACK/RLIM_INFINITY (1/4 of the size), but does
not take the argument and environment pointers into account, which allows
attackers to bypass this limitation. This affects Linux Kernel versions 4.11.5
and earlier. It appears that this feature was introduced in the Linux Kernel
version 2.6.23. (CVE-2017-1000365)
Impact
This vulnerability allows unauthorized disclosure of information and disruption
of service.
Security Advisory Status
F5 Product Development has assigned ID 672895 (BIG-IP), ID 672984 (BIG-IQ), ID
672983 (Enterprise Manager), ID 673044 (F5 iWorkflow), and IDs CPF-24196,
CPF-24197, and CPF-24198 (Traffix) to this vulnerability. Additionally, BIG-IP
iHealth may list Heuristic H15412203 on the Diagnostics > Identified > Low
page.
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 |
+---------------+----------------+-----------------+----------+----------------+
| |16.0.0 - 16.0.1 | | | |
| |15.0.0 - 15.1.2 | | | |
| |14.0.0 - 14.1.4 | | | |
|BIG-IP LTM |13.0.0 - 13.1.4 |None |Low |Linux kernel |
| |12.0.0 - 12.1.6 | | | |
| |11.4.0 - 11.6.5 | | | |
| |11.2.1 | | | |
+---------------+----------------+-----------------+----------+----------------+
| |15.0.0 - 15.1.2 | | | |
| |14.0.0 - 14.1.4 | | | |
|BIG-IP AAM* |13.0.0 - 13.1.4 |None |Low |Linux kernel |
| |12.0.0 - 12.1.6 | | | |
| |11.4.0 - 11.6.5 | | | |
+---------------+----------------+-----------------+----------+----------------+
| |16.0.0 - 16.0.1 | | | |
| |15.0.0 - 15.1.2 | | | |
|BIG-IP AFM |14.0.0 - 14.1.4 |None |Low |Linux kernel |
| |13.0.0 - 13.1.4 | | | |
| |12.0.0 - 12.1.6 | | | |
| |11.4.0 - 11.6.5 | | | |
+---------------+----------------+-----------------+----------+----------------+
| |16.0.0 - 16.0.1 | | | |
| |15.0.0 - 15.1.2 | | | |
|BIG-IP |14.0.0 - 14.1.4 | | | |
|Analytics |13.0.0 - 13.1.4 |None |Low |Linux kernel |
| |12.0.0 - 12.1.6 | | | |
| |11.4.0 - 11.6.5 | | | |
| |11.2.1 | | | |
+---------------+----------------+-----------------+----------+----------------+
| |16.0.0 - 16.0.1 | | | |
| |15.0.0 - 15.1.2 | | | |
| |14.0.0 - 14.1.4 | | | |
|BIG-IP APM |13.0.0 - 13.1.4 |None |Low |Linux kernel |
| |12.0.0 - 12.1.6 | | | |
| |11.4.0 - 11.6.5 | | | |
| |11.2.1 | | | |
+---------------+----------------+-----------------+----------+----------------+
| |16.0.0 - 16.0.1 | | | |
| |15.0.0 - 15.1.2 | | | |
| |14.0.0 - 14.1.4 | | | |
|BIG-IP ASM |13.0.0 - 13.1.4 |None |Low |Linux kernel |
| |12.0.0 - 12.1.6 | | | |
| |11.4.0 - 11.6.5 | | | |
| |11.2.1 | | | |
+---------------+----------------+-----------------+----------+----------------+
| |16.0.0 - 16.0.1 | | | |
| |15.0.0 - 15.1.2 | | | |
|BIG-IP DNS |14.0.0 - 14.1.4 |None |Low |Linux kernel |
| |13.0.0 - 13.1.4 | | | |
| |12.0.0 - 12.1.6 | | | |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP Edge |11.2.1 |None |Low |Linux kernel |
|Gateway | | | | |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP GTM |11.4.0 - 11.6.5 |None |Low |Linux kernel |
| |11.2.1 | | | |
+---------------+----------------+-----------------+----------+----------------+
| |16.0.0 - 16.0.1 | | | |
| |15.0.0 - 15.1.2 | | | |
|BIG-IP Link |14.0.0 - 14.1.4 | | | |
|Controller |13.0.0 - 13.1.4 |None |Low |Linux kernel |
| |12.0.0 - 12.1.6 | | | |
| |11.4.0 - 11.6.5 | | | |
| |11.2.1 | | | |
+---------------+----------------+-----------------+----------+----------------+
| |16.0.0 - 16.0.1 | | | |
| |15.0.0 - 15.1.2 | | | |
|BIG-IP PEM |14.0.0 - 14.1.4 |None |Low |Linux kernel |
| |13.0.0 - 13.1.4 | | | |
| |12.0.0 - 12.1.6 | | | |
| |11.4.0 - 11.6.5 | | | |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP PSM |11.4.0 - 11.4.1 |None |Low |Linux kernel |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IP |11.2.1 |None |Low |Linux kernel |
|WebAccelerator | | | | |
+---------------+----------------+-----------------+----------+----------------+
| |16.0.0 - 16.0.1 | | | |
| |15.0.0 - 15.1.2 | | | |
|BIG-IP WebSafe |14.0.0 - 14.1.4 |None |Low |Linux kernel |
| |13.0.0 - 13.1.4 | | | |
| |12.0.0 - 12.1.6 | | | |
| |11.4.0 - 11.6.5 | | | |
+---------------+----------------+-----------------+----------+----------------+
|ARX |None |6.2.0 - 6.4.0 |Not |None |
| | | |vulnerable| |
+---------------+----------------+-----------------+----------+----------------+
|Enterprise |3.1.1 |None |Low |Linux kernel |
|Manager | | | | |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Cloud |4.4.0 - 4.5.0 |None |Low |Linux kernel |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Device |4.4.0 - 4.5.0 |None |Low |Linux kernel |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Security|4.4.0 - 4.5.0 |None |Low |Linux kernel |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ ADC |4.5.0 |None |Low |Linux kernel |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ |5.0.0 - 5.2.0 | | | |
|Centralized |4.6.0 |None |Low |Linux kernel |
|Management | | | | |
+---------------+----------------+-----------------+----------+----------------+
|BIG-IQ Cloud | | | | |
|and |1.0.0 |None |Low |Linux kernel |
|Orchestration | | | | |
+---------------+----------------+-----------------+----------+----------------+
|F5 iWorkflow |2.0.0 - 2.2.0 |None |Low |Linux kernel |
+---------------+----------------+-----------------+----------+----------------+
|LineRate |None |2.5.0 - 2.6.2 |Not |None |
| | | |vulnerable| |
+---------------+----------------+-----------------+----------+----------------+
|Traffix SDC |5.0.0 - 5.1.0 |None |Low |Linux kernel |
| |4.0.0 - 4.4.0 | | | |
+---------------+----------------+-----------------+----------+----------------+
* BIG-IP AAM has reached End of Software Development (EoSD). For more
information, refer to K70113407: End of Software Development for BIG-IP AAM.
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
To mitigate this vulnerability for affected F5 products, you should permit
management access to F5 products only over a secure network and limit shell
access to trusted users. For more information about securing access to BIG-IP
and Enterprise Manager systems, refer to K13309: Restricting access to the
Configuration utility by source IP address (11.x - 13.x) and K13092: Overview
of securing access to the BIG-IP system.
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 K4602: Overview of the F5 security vulnerability response policy
o K4918: Overview of the F5 critical issue hotfix policy
o K167: Downloading software and firmware from F5
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