CVE-2020-27302: Buffer Overflow

Published Jun 4, 2021
·
Updated

A stack buffer overflow in Realtek RTL8710 (and other Ameba-based devices) can lead to remote code execution via the "memcpy" function, when an attacker in Wi-Fi range sends a crafted "Encrypted GTK" value as part of the WPA2 4-way-handshake.

Affected Software

4 affected components
Realtek Rtl8710c Firmware
Realtek Rtl8710c
Realtek Rtl8195a Firmware
Realtek RTL8195A

Event History

Jun 4, 2021
CVE Published
via MITRE·12:24 PM
Data Sourced
via MITRE·12:24 PM
Description
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Frequently Asked Questions

1

What is CVE-2020-27302?

CVE-2020-27302 is a stack buffer overflow vulnerability in Realtek RTL8710 (and other Ameba-based devices) that can lead to remote code execution.

2

How does CVE-2020-27302 work?

CVE-2020-27302 occurs when an attacker in Wi-Fi range sends a crafted "Encrypted GTK" value as part of the WPA2 4-way-handshake, which triggers a stack buffer overflow in the "memcpy" function.

3

Which software versions are affected by CVE-2020-27302?

The Realtek RTL8710c Firmware and the Realtek RTL8195A Firmware are affected by CVE-2020-27302.

4

What is the severity of CVE-2020-27302?

CVE-2020-27302 has a severity rating of high.

5

Where can I find more information about CVE-2020-27302?

You can find more information about CVE-2020-27302 at the following link: [https://www.vdoo.com/blog/realtek-wifi-vulnerabilities-zero-day](https://www.vdoo.com/blog/realtek-wifi-vulnerabilities-zero-day).

Contact

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