CVE-2021-33536

WEIDMUELLER: WLAN devices affected by Denial-of-Service vulnerability

State: Published
Severity: 7.5 High
Published: Jun 25, 2021
Updated: Sep 17, 2024
Reserved: May 24, 2021

Description

In Weidmueller Industrial WLAN devices in multiple versions an exploitable denial-of-service vulnerability exists in ServiceAgent functionality. A specially crafted packet can cause an integer underflow, triggering a large memcpy that will access unmapped or out-of-bounds memory. An attacker can send this packet while unauthenticated to trigger this vulnerability.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CERTVDE

Weaknesses

CWE-191 Integer Underflow (Wrap or Wraparound)

Affected Products

Product	Versions
IE-WL(T)-BL-AP-CL-XXWeidmüller	IE-WL-BL-AP-CL-EU (2536600000) through V1.16.18 (Build 18081617)Affected IE-WLT-BL-AP-CL-EU (2536650000) through V1.16.18 (Build 18081617)Affected IE-WL-BL-AP-CL-US (2536660000) through V1.16.18 (Build 18081617)Affected IE-WLT-BL-AP-CL-US (2536670000) through V1.16.18 (Build 18081617)Affected
IE-WL(T)-VL-AP-CL-XXWeidmüller	IE-WL-VL-AP-BR-CL-EU (2536680000) through V1.11.10 (Build 18122616)Affected IE-WLT-VL-AP-BR-CL-EU (2536690000) through V1.11.10 (Build 18122616)Affected IE-WL-VL-AP-BR-CL-US (2536700000) through V1.11.10 (Build 18122616)Affected IE-WLT-VL-AP-BR-CL-US (2536710000) through V1.11.10 (Build 18122616)Affected

References

https://cert.vde.com/en-us/advisories/vde-2021-026

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