high7.5
CVE-2023-27321
Uncontrolled Resource Consumption in OPC UA .NET Standard Reference Server
Impact
This security update resolves a vulnerability in the OPC UA .NET Standard Reference Server that allows remote attackers to send malicious requests that consume all memory available to the server. https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2023-27321.pdf
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| nuget | OPCFoundation.NetStandard.Opc.Ua.Server | < 1.4.371.86 | 1.4.371.86 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Opcfoundation | Ua-.Netstandard | before 1.4.371.86 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2023-27321.pdf
- https://www.zerodayinitiative.com/advisories/ZDI-23-548/
- https://github.com/advisories/GHSA-vpf7-r2fv-75m9
- https://github.com/OPCFoundation/UA-.NETStandard/security/advisories/GHSA-vpf7-r2fv-75m9
- https://nvd.nist.gov/vuln/detail/CVE-2023-27321
- https://www.zerodayinitiative.com/advisories/ZDI-23-548