Vulnerabilities > CVE-2021-45117 - NULL Pointer Dereference vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 1 | |
| Application | 6 |
Common Weakness Enumeration (CWE)
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-285795.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-285795.pdf
- https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-45117.pdf
- https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-45117.pdf
- https://www.youtube.com/watch?v=qv-RBdCaV4k
- https://www.youtube.com/watch?v=qv-RBdCaV4k