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.
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History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: VDOO

Published: 2021-02-03T16:49:20

Updated: 2021-02-03T16:49:20

Reserved: 2020-09-23T00:00:00


Link: CVE-2020-25853

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2021-02-03T17:15:14.187

Modified: 2021-02-08T18:23:25.117


Link: CVE-2020-25853

JSON object: View

cve-icon Redhat Information

No data.