CVE-2020-25855

Severity CVSS v4.0:
Pending analysis
Type:
CWE-787 Out-of-bounds Write
Publication date:
03/02/2021
Last modified:
08/02/2021

Description

The function AES_UnWRAP() in the Realtek RTL8195A Wi-Fi Module prior to versions released in April 2020 (up to and excluding 2.08) does not validate the size parameter for a memcpy() operation, resulting in a stack buffer overflow which can be exploited for remote code execution or denial of service. An attacker can impersonate an Access Point and attack a vulnerable Wi-Fi client, by injecting a crafted packet into the WPA2 handshake. The attacker needs to know the network's PSK in order to exploit this.

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:realtek:rtl8195a_firmware:*:*:*:*:*:*:*:* 2.08 (excluding)
cpe:2.3:h:realtek:rtl8195a:-:*:*:*:*:*:*:*