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Announcement > SAP10297
D-Link Affected Devices :: CVE-2022-30295 :: DNS poisoning flaw due to the use of legacy version of uClibc
Publication ID: SAP10297
Resolved Status: Yes
Published on: 4 May 2022 3:09 GMT
Last updated on: 1 February 2024 6:51 GMT



On May 4, 2022, D-Link became aware of the public disclosure of the DNS poisoning flaw in various versions of the uClibc software library. D-Link has been aware of the security issues involved with this library prior to public disclosure and has address the recognized issue in many of the its devices prior to the public disclosure.


Publically disclosed as CVE-2022-30295, a 3rd party security researcher found a popular IP communication software libary uClibc-ng through 1.0.40 and uClibc through use predictable DNS transaction IDs that may lead to DNS cache poisoning. This is related to a reset of a value to 0x2.

D-Link takes the issues of network security and user privacy very seriously. We have a dedicated task force and product management team on call to address evolving security issues and implement appropriate security measures.


Report information  


         - Reported by Nozomi Networks

                  - https://www.kb.cert.org release : Link

                  - Nozomi Networks : Disclosure Post

                  - NIST CERT/CC : Link


Affected Models


Model Hardware Revision  Region Affected FW Fixed FW Recommendation  Last Updated
DSL-X1852E All A Series Hardware Revisions Non-US vAU_100 & Below v1.12 Upgrade to Hofix Patch
DWR-M953 All A Series Hardware Revisions Non-US v1.01.24 & Below
 v1.02.3.060  Upgrade to Hofix Patch 01/31/2024
DAP-1325 All A Series Hardware Revisions US  v1.07B01 & Below v1.09b03 Beta-Hotfix  Upgrade to Hofix Patch 01/31/2024


Regarding Security patch for your D-Link Devices
Firmware updates address the security vulnerabilities in affected D-Link devices. D-Link will update this continually and we strongly recommend all users to install the relevant updates.
Please note that this is a device beta software, beta firmware, or hot-fix release which is still undergoing final testing before its official release. The beta software, beta firmware, or hot-fix is provided on an “as is” and “as available” basis and the user assumes all risk and liability for use thereof. D-Link does not provide any warranties, whether express or implied, as to the suitability or usability of the beta firmware. D-Link will not be liable for any loss, whether such loss is direct, indirect, special or consequential, suffered by any party as a result of their use of the beta firmware.
As there are different hardware revisions on our products, please check this on your device before downloading the correct corresponding firmware update. The hardware revision information can usually be found on the product label on the underside of the product next to the serial number. Alternatively, they can also be found on the device web configuration.