CVE Vulnerability

CVE-2021-40142

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-40142.pdf Patch Vendor Advisory
https://opcfoundation.org/security-bulletins/ Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-321292.pdf Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:opcfoundation:local_discover_server:*:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc_runtime:-:*:*:*:professional:*:*:*
cpe:2.3:a:siemens:simatic_wincc:-:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_net_pc:16:-:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_net_pc:15:-:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_net_pc:14:-:*:*:*:*:*:*
cpe:2.3:a:siemens:telecontrol_server_basic:3.0:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_net_pc:17:-:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_wincc_unified_scada_runtime:-:*:*:*:*:*:*:*
Information

Published : 2021-08-27 07:15

Updated : 2022-09-03 03:54

NVD link : CVE-2021-40142

Mitre link : CVE-2021-40142

Products Affected
No products.
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer