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CVE-2020-25853 (GCVE-0-2020-25853)

Vulnerability from cvelistv5 – Published: 2021-02-03 16:49 – Updated: 2024-08-04 15:49
VLAI
Summary
The function CheckMic() 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 internal function, _rt_md5_hmac_veneer() or _rt_hmac_sha1_veneer(), resulting in a stack buffer over-read which can be exploited for 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 does not need to know the network's PSK.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-126 - Stack buffer over-read (CWE-126)
Assigner
References
Impacted products
Vendor Product Version CPE status
n/a Realtek RTL8195A Wi-Fi Module Affected: Versions before 2020-04-21 (up to and excluding 2.08)
Show details on NVD website
To clipboard 

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