Description
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.
Published: 2021-02-03
Score: 8.1 High
EPSS: 1.4% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Advisories
Source ID Title
EUVD EUVD EUVD-2020-18489 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.
History

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Realtek Rtl8195a Rtl8195a Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: VDOO

Published:

Updated: 2024-08-04T15:49:05.936Z

Reserved: 2020-09-23T00:00:00.000Z

Link: CVE-2020-25856

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-02-03T17:15:15.420

Modified: 2024-11-21T05:18:54.840

Link: CVE-2020-25856

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses