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CVE-2023-27321: Uncontrolled Resource Consumption in OPC UA .NET Standard Reference Server

May 5, 2023

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

  • github.com/OPCFoundation/UA-.NETStandard/security/advisories/GHSA-vpf7-r2fv-75m9
  • github.com/advisories/GHSA-vpf7-r2fv-75m9

Code Behaviors & Features

Detect and mitigate CVE-2023-27321 with GitLab Dependency Scanning

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Affected versions

All versions before 1.4.371.86

Fixed versions

  • 1.4.371.86

Solution

Upgrade to version 1.4.371.86 or above.

Source file

nuget/OPCFoundation.NetStandard.Opc.Ua.Server/CVE-2023-27321.yml

Spotted a mistake? Edit the file on GitLab.

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