Stack-based buffer overflow in RTL8170C and RTL8195AM - CVE-2020-27302
Published: June 5, 2021
Vulnerability identifier: #VU53825
CSH Severity: Medium
CVSS v4: 8.6 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-27302
CWE-ID: CWE-121
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when parsing WPA2 key. A remote attacker with knowledge of network PSK can send specially crafted packets to devices connected to the WiFi network, trigger stack-based buffer overflow and execute arbitrary code on WiFi client devices.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
RTL8170C
RTL8195AM
RTL8195AM
How to mitigate CVE-2020-27302
Install updates from vendor's website.