Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2021-40142

Severity CVSS v4.0:
Pending analysis
Type:
CWE-119 Buffer Errors
Publication date:
27/08/2021
Last modified:
03/09/2022

Description

In OPC Foundation Local Discovery Server (LDS) before 1.04.402.463, remote attackers can cause a denial of service (DoS) by sending carefully crafted messages that lead to Access of a Memory Location After the End of a Buffer.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:opcfoundation:local_discover_server:*:*:*:*:*:*:*:* 1.04.402.463 (excluding)
cpe:2.3:o:siemens:simatic_process_historian_opc_ua_server_firmware:*:*:*:*:*:*:*:* 2022 (excluding)
cpe:2.3:o:siemens:simatic_process_historian_opc_ua_server_firmware:2022:-:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_process_historian_opc_ua_server:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_net_pc:14:-:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_net_pc:15:-:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_net_pc:16:-:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_net_pc:17:-:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc_runtime:-:*:*:*:professional:*:*:*
cpe:2.3:a:siemens:simatic_wincc_unified_scada_runtime:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:telecontrol_server_basic:3.0:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools