CVE-2020-25856 (GCVE-0-2020-25856)

Vulnerability from cvelistv5 – Published: 2021-02-03 16:49 – Updated: 2024-08-04 15:49
VLAI?
Summary
The function DecWPA2KeyData() 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 an rtl_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.
Severity ?
No CVSS data available.
CWE
  • CWE-121 - Stack buffer overflow (CWE-121)
Assigner
References
Impacted products
Vendor Product Version
n/a Realtek RTL8195A Wi-Fi Module Affected: Versions before 2020-04-21 (up to and excluding 2.08)
Show details on NVD website
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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