PT-2021-22514 · Realtek · Realtek Rtl8195Am

Hac425Xxx · Published 2021-12-22 · Updated 2022-01-04 · CVE-2021-39306

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Realtek RTL8195AM versions prior to 2.0.10

Description A stack buffer overflow issue exists in the client code of the affected device. This occurs when an attacker sends a large-sized Authentication challenge text in WEP security, potentially allowing for exploitation.

Recommendations For versions prior to 2.0.10, update to version 2.0.10 or later to resolve the issue. As a temporary workaround, consider restricting the size of Authentication challenge texts in WEP security to prevent potential exploitation.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-39306

Affected Products

Realtek Rtl8195Am

References · 5

• https://amebaiot.com/en/security_bulletin/cve-2021-39306 · Vendor Advisory
• https://realtek.com · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-39306 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39306 · Security Note
• https://t.me/cvenotify/24802 · Telegram Post