Description (CNA)
This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Unified Automation OPC UA C++ Demo Server 1.7.6-537. Authentication is not required to exploit this vulnerability. The specific flaw exists within the OpcUa_SecureListener_ProcessSessionCallRequest method. A crafted OPC UA message can force the server to incorrectly update a reference count. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-16927.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Unified Automation / OPC UA C++ Demo Server | affected 1.7.6-537 |
CWE
CWE-911
References
- https://www.zerodayinitiative.com/advisories/ZDI-22-1030/
- https://documentation.unified-automation.com/uasdkcpp/1.7.7/CHANGELOG.txt
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.