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AUSCERT External Security Bulletin Redistribution
ESB-2022.0295
K34360320: BIG-IP FastL4 vulnerability CVE-2022-23010
21 January 2022
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: BIG-IP
Publisher: F5 Networks
Operating System: Network Appliance
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2022-23010
Original Bulletin:
https://support.f5.com/csp/article/K34360320
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K34360320: BIG-IP FastL4 vulnerability CVE-2022-23010
Original Publication Date: 19 Jan, 2022
Security Advisory Description
When a FastL4 profile and an HTTP profile are configured on a virtual server,
undisclosed requests can cause an increase in memory resource utilization. (
CVE-2022-23010)
Impact
System performance can degrade until the process is either forced to restart or
is manually restarted. This vulnerability allows a remote attacker to cause a
degradation of service that can lead to a denial-of-service (DoS) on the BIG-IP
system. There is no control plane exposure; this is a data plane issue only.
Security Advisory Status
F5 Product Development has assigned ID 550928 (BIG-IP) to this vulnerability.
This issue has been classified as CWE-404: Improper Resource Shutdown or
Release.
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, point 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 be |introduced|Severity |score^|component or |
| | |vulnerable |in | |1 |feature |
+------------+------+-------------+----------+----------+------+--------------+
| |16.x |16.0.0 - |16.1.0 | | | |
| | |16.0.1 | | | | |
| +------+-------------+----------+ | | |
| |15.x |15.1.0 - |15.1.4.1 | | | |
| | |15.1.4 | | | | |
| +------+-------------+----------+ | | |
| |14.x |14.1.0 - |14.1.4.4 | | | |
|BIG-IP (all | |14.1.4 | | | |Performance |
|modules) +------+-------------+----------+High |7.5 |type virtual |
| |13.x |13.1.0 - |None | | |servers |
| | |13.1.3 | | | | |
| +------+-------------+----------+ | | |
| |12.x |12.1.0 - |Will not | | | |
| | |12.1.5 |fix | | | |
| +------+-------------+----------+ | | |
| |11.x |11.6.1 - |Will not | | | |
| | |11.6.5 |fix | | | |
+------------+------+-------------+----------+----------+------+--------------+
| |8.x |None |Not | | | |
|BIG-IQ | | |applicable|Not | | |
|Centralized +------+-------------+----------+vulnerable|None |None |
|Management |7.x |None |Not | | | |
| | | |applicable| | | |
+------------+------+-------------+----------+----------+------+--------------+
|F5OS-A |1.x |None |Not |Not |None |None |
| | | |applicable|vulnerable| | |
+------------+------+-------------+----------+----------+------+--------------+
|F5OS-C |1.x |None |Not |Not |None |None |
| | | |applicable|vulnerable| | |
+------------+------+-------------+----------+----------+------+--------------+
| |3.x |None |Not | | | |
| | | |applicable| | | |
| +------+-------------+----------+ | | |
|NGINX App |2.x |None |Not |Not |None |None |
|Protect | | |applicable|vulnerable| | |
| +------+-------------+----------+ | | |
| |1.x |None |Not | | | |
| | | |applicable| | | |
+------------+------+-------------+----------+----------+------+--------------+
|Traffix SDC |5.x |None |Not |Not |None |None |
| | | |applicable|vulnerable| | |
+------------+------+-------------+----------+----------+------+--------------+
^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.
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
If you must associate an HTTP profile with the virtual server, use a Standard
virtual server instead of the Performance virtual server.
Acknowledgements
This issue was discovered internally by F5.
Supplemental Information
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 - 16.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
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