7.8
CWE
787 119
Advisory Published
Updated

CVE-2021-35392: Buffer Overflow

First published: Mon Aug 16 2021(Updated: )

Realtek Jungle SDK version v2.x up to v3.4.14B provides a 'WiFi Simple Config' server that implements both UPnP and SSDP protocols. The binary is usually named wscd or mini_upnpd and is the successor to miniigd. The server is vulnerable to a heap buffer overflow that is present due to unsafe crafting of SSDP NOTIFY messages from received M-SEARCH messages ST header.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Realtek Jungle SDK>=2.0<=3.4.14b

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Frequently Asked Questions

  • What is CVE-2021-35392?

    CVE-2021-35392 is a vulnerability in Realtek Jungle SDK that allows for a heap buffer overflow due to unsafe crafting.

  • What is the severity of CVE-2021-35392?

    CVE-2021-35392 has a severity value of 7.5, which is considered high.

  • Which software versions are affected by CVE-2021-35392?

    Realtek Jungle SDK versions v2.x up to v3.4.14B are affected by CVE-2021-35392.

  • How can I fix CVE-2021-35392?

    To fix CVE-2021-35392, it is recommended to update Realtek Jungle SDK to a version beyond v3.4.14B.

  • Where can I find more information about CVE-2021-35392?

    You can find more information about CVE-2021-35392 in the references provided: https://www.iot-inspector.com/blog/advisory-multiple-issues-realtek-sdk-iot-supply-chain, https://www.realtek.com/en/cu-1-en/cu-1-taiwan-en, https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2021-35392_35395.pdf.

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