GHSA-vpf7-r2fv-75m9

Uncontrolled Resource Consumption in OPC UA .NET Standard Reference Server

Source: GitHub Advisory Database (reviewed) High CVE-2023-27321

Packages

Ecosystem	Package	Affected	Fixed in
NuGet	OPCFoundation.NetStandard.Opc.Ua.Server	< 1.4.371.86	1.4.371.86

Details

As written in the advisory (Markdown source, shown as plain text).

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

References

External links from the advisory. They lead to third-party sites.

https://github.com/OPCFoundation/UA-.NETStandard/security/advisories/GHSA-vpf7-r2fv-75m9 web
https://nvd.nist.gov/vuln/detail/CVE-2023-27321 advisory
https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2023-27321.pdf web
https://github.com/OPCFoundation/UA-.NETStandard package
https://www.zerodayinitiative.com/advisories/ZDI-23-548 web