Associated CVE IDs: CVE-2019-5016; CVE-2019-5017
NETGEAR has released firmware fixes or hotfixes for KCodes NetUSB unauthenticated remote kernel information disclosure and arbitrary memory read security vulnerabilities on the following product models:
- D6000 running firmware versions prior to v1.0.0.78
- D6400 running firmware versions prior to v1.0.0.88
- D7800 running firmware versions prior to v1.0.1.56
- DC112A running firmware versions prior to v1.0.0.44
- EX6200 running firmware versions prior to v1.0.3.90
- EX6200v2 running firmware versions prior to v1.0.1.78
- EX8000 running firmware versions prior to v1.0.1.202
- R6250 running firmware versions prior to v1.0.4.38_BETA
- R6400 running firmware versions prior to v1.0.1.50
- R7300DST running firmware versions prior to v1.0.0.74_BETA
- R7500v2 running firmware versions prior to v1.0.3.41_BETA
- R7800 running firmware versions prior to v1.0.2.63_BETA
- R7900 running firmware versions prior to 1.0.3.14_10.0.40_BETA
- R8000 running firmware versions prior to 1.0.4.38_10.1.59_BETA
- R8900 running firmware versions prior to v1.0.4.36_BETA
- R9000 running firmware versions prior to v1.0.4.36_BETA
- WNDR4300v2 running firmware versions prior to v1.0.0.60_BETA
- WNDR4500v3 running firmware versions prior to v1.0.0.60_BETA
- XR500 running firmware versions prior to v2.3.2.56
- XR700 running firmware versions prior to v1.0.1.18_BETA
The firmware versions that end in “_BETA” are security hotfixes. Security hotfixes are beta firmware created outside of normal development and testing processes. While the hotfixes do fix the security vulnerabilities identified above, they could negatively affect the regular operation of your device. Though our pre-deployment testing process did not indicate that these hotfixes would impact device operability, we always encourage our users to monitor their device closely after installing the firmware hotfix.
NETGEAR strongly recommends that you download the latest firmware fixes or hotfixes for these product models as soon as possible.
To download the latest firmware for your NETGEAR product:
- Visit NETGEAR Support.
- Start typing your model number in the search box, then select your model from the drop-down menu as soon as it appears.
If you do not see a drop-down menu, make sure that you entered your model number correctly, or select a product category to browse for your product model. - Click Downloads.
- Under Current Versions, select the download whose title begins with Firmware Version.
- Click Release Notes.
- Follow the instructions in the firmware release notes to download and install the new firmware.
NETGEAR will update this advisory as necessary when more information becomes available.
Disclaimer
This document is provided on an "as is" basis and does not imply any kind of guarantee or warranty, including the warranties of merchantability or fitness for a particular use. Your use of the information in the document or materials linked from the document is at your own risk. NETGEAR reserves the right to change or update this document at any time. As necessary, NETGEAR will update this document as new information becomes available.
The KCodes NetUSB unauthenticated remote kernel information disclosure and arbitrary memory read vulnerabilities will persist if you do not complete all recommended steps above or fail to download and install the firmware hotfix. NETGEAR is not responsible for any consequences that could have been avoided by following the recommendations in this notification.
Acknowledgements
Cisco Talos
Common Vulnerability Scoring System Vector
CVSS v3 Rating: High
CVSS v3 Score: 8.8
Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Contact
We appreciate and value having security concerns brought to our attention. NETGEAR constantly monitors for both known and unknown threats. Being pro-active rather than re-active to emerging security issues is fundamental for product support at NETGEAR.
It is NETGEAR's mission to be the innovative leader in connecting the world to the internet. To achieve this mission, we strive to earn and maintain the trust of those that use NETGEAR products for their connectivity.
To report a security vulnerability, visit https://bugcrowd.com/netgear.
If you are a NETGEAR customer with a security-related support concern, you can contact NETGEAR customer support at techsupport.security@netgear.com.
For all other issues, visit http://www.netgear.com/about/security/.
Revision History
2019-06-14: Published advisory
2019-08-28:
- Added the following additional fixed products to the advisory: D6000, D6400, D7800, DC112A, EX6200, EX6200v2, EX8000, R6250, R6400, R7300, R7500v2, R7800, R8900, R9000, WNDR4300v2, WNDR4500v3, XR500, XR700
- Changed title to reflect the additional affected models
- Added wording to indicate that some firmware updates are hotfixes and some are not