CVE-2023-27321
HIGH7.5EPSS 3.3%Uncontrolled Resource Consumption in OPC UA .NET Standard Reference Server
Published: 5/5/2023Modified: 5/8/2024
Description
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 (1)
- NuGet/OPCFoundation.NetStandard.Opc.Ua.Serverfrom 0, < 1.4.371.86
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References (5)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2023-27321
- PATCHhttps://github.com/OPCFoundation/UA-.NETStandard
- WEBhttps://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2023-27321.pdf
- WEBhttps://github.com/OPCFoundation/UA-.NETStandard/security/advisories/GHSA-vpf7-r2fv-75m9
- WEBhttps://www.zerodayinitiative.com/advisories/ZDI-23-548