PT-2021-23878 · Realtek · Realtek Rtl8195Am

Hac425Xxx · Published 2021-11-11 · Updated 2021-12-21 · CVE-2021-43573

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 buffer overflow issue exists in the client code of the affected devices when processing a malformed IE length of HT capability information in the Beacon and Association response frame. This occurs due to improper handling of the HT capability information in the Beacon and Association response frames.

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 access to the client code that processes HT capability information until a patch is available.

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2021-43573

Affected Products

Realtek Rtl8195Am

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-43573 · Security Note
• https://osv.dev/vulnerability/CVE-2021-43573 · Vendor Advisory
• https://t.me/cvenotify/24728 · Telegram Post
• https://amebaiot.com/en/security_bulletin/cve-2021-43573 · Note