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AUSCERT External Security Bulletin Redistribution
ESB-2019.3757
Linux kernel vulnerability CVE-2019-15505
8 October 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: F5 BIG-IP Products
Publisher: F5 Networks
Operating System: Network Appliance
Impact/Access: Modify Arbitrary Files -- Console/Physical
Create Arbitrary Files -- Console/Physical
Denial of Service -- Console/Physical
Access Confidential Data -- Console/Physical
Resolution: Mitigation
CVE Names: CVE-2019-15505
Original Bulletin:
https://support.f5.com/csp/article/K28222050
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K28222050:Linux kernel vulnerability CVE-2019-15505
Security Advisory
Original Publication Date: 08 Oct, 2019
Security Advisory Description
drivers/media/usb/dvb-usb/technisat-usb2.c in the Linux kernel through 5.2.9
has an out-of-bounds read via crafted USB device traffic (which may be remote
via usbip or usbredir). (CVE-2019-15505)
Impact
USB device traffic may exploit this vulnerability resulting in disclosure of
sensitive information, addition or modification of data, or Denial of Service
(DoS). This vulnerability may affect the BIG-IP system with a physical USB
port, and mounted and untrusted USB device.
Security Advisory Status
F5 Product Development has assigned ID 832525 (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, 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 |introduced|Severity |score^|component |
| | |be |in | |1 |or feature|
| | |vulnerable| | | | |
+------------------+------+----------+----------+-----------+------+----------+
| |15.x |15.0.0 - |None | | | |
| | |15.0.1 | | | | |
| +------+----------+----------+ | | |
|BIG-IP (LTM, AAM, |14.x |14.0.0 - |None | | | |
|AFM, Analytics, | |14.1.2 | | | | |
|APM, ASM, DNS, +------+----------+----------+ | | |
|Edge Gateway, FPS,|13.x |13.1.0 - |None |Medium |6.1 |Linux |
|GTM, Link | |13.1.3 | | | |kernel |
|Controller, PEM, +------+----------+----------+ | | |
|WebAccelerator) |12.x |None |Not | | | |
| | | |applicable| | | |
| +------+----------+----------+ | | |
| |11.x |None |Not | | | |
| | | |applicable| | | |
+------------------+------+----------+----------+-----------+------+----------+
| | | |Not |Not | | |
|Enterprise Manager|3.x |None |applicable|vulnerable^|None |None |
| | | | |2 | | |
+------------------+------+----------+----------+-----------+------+----------+
| |7.x |None |Not | | | |
| | | |applicable| | | |
| +------+----------+----------+Not | | |
|BIG-IQ Centralized|6.x |None |Not |vulnerable^|None |None |
|Management | | |applicable|2 | | |
| +------+----------+----------+ | | |
| |5.x |None |Not | | | |
| | | |applicable| | | |
+------------------+------+----------+----------+-----------+------+----------+
| | | |Not |Not | | |
|F5 iWorkflow |2.x |None |applicable|vulnerable^|None |None |
| | | | |2 | | |
+------------------+------+----------+----------+-----------+------+----------+
|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.
^2The 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, do not install or mount untrusted USB devices on
the BIG-IP system.
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 - 15.x)
o K15106: Managing BIG-IQ product hotfixes
o K15113: BIG-IQ hotfix and point release matrix
o K48955220: Installing an OPSWAT Endpoint Security update on BIG-IP APM
systems (11.4.x and later)
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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