CVE-2021-35395: Realtek AP-Router SDK Buffer Overflow Vulnerability
First published: Mon Aug 16 2021(Updated: )
Realtek AP-Router SDK HTTP web server boa contains a buffer overflow vulnerability due to unsafe copies of some overly long parameters submitted in the form that lead to denial-of-service (DoS).
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Realtek Realtek Jungle Sdk | >=2.0<=3.4.14b | |
| Realtek AP-Router SDK | ||
| >=2.0<=3.4.14b |
Remedy
https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2021-35392_35395.pdf
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Reference Links
Frequently Asked Questions
What is CVE-2021-35395?
CVE-2021-35395 is a buffer overflow vulnerability present in the Realtek AP-Router SDK.
How severe is CVE-2021-35395?
CVE-2021-35395 is classified as a critical vulnerability with a severity score of 9.8 out of 10.
Which software versions are affected by CVE-2021-35395?
Realtek Jungle SDK versions 2.x up to 3.4.14B as well as the Realtek AP-Router SDK are affected by CVE-2021-35395.
What is the Common Weakness Enumeration (CWE) ID for CVE-2021-35395?
CVE-2021-35395 is associated with CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-77 (Improper Neutralization of Special Elements used in a Command).
Are there any references available for CVE-2021-35395?
Yes, you can find more information about CVE-2021-35395 in the references provided: [Advisory - Multiple Issues in Realtek SDK IoT Supply Chain](https://www.iot-inspector.com/blog/advisory-multiple-issues-realtek-sdk-iot-supply-chain), [Realtek Website - Taiwan](https://www.realtek.com/en/cu-1-en/cu-1-taiwan-en), [Realtek AP-Router SDK Advisory - CVE-2021-35392_35395](https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2021-35392_35395.pdf).
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