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 internal function, rt_arc4_crypt_veneer() or _AES_UnWRAP_veneer(), 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.
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History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: VDOO

Published: 2021-02-03T16:49:08

Updated: 2021-02-03T16:49:08

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


Link: CVE-2020-25854

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2021-02-03T17:15:14.747

Modified: 2021-02-08T18:32:11.180


Link: CVE-2020-25854

JSON object: View

cve-icon Redhat Information

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