CVE-2021-45117

The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.

Score

CVSS 3.1 6.5 Medium

Status

Modified - cve@mitre.org

Published

2022-03-21

Last modified

2024-08-04

Weaknesses

CWE-476

Affected products

• Ua-nodeset (Opcfoundation)
• Simatic Net Pc (Siemens)
• Sitop Manager (Siemens)
• Telecontrol Server Basic (Siemens)

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-285795.pdf
• https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-45117.pdf
• https://www.youtube.com/watch?v=qv-RBdCaV4k