{"id":"GHSA-vpf7-r2fv-75m9","summary":"Uncontrolled Resource Consumption in OPC UA .NET Standard Reference Server","details":"This security update resolves a vulnerability in the OPC UA .NET Standard Reference Server that allows\nremote attackers to send malicious requests that consume all memory available to the server.\n\nhttps://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2023-27321.pdf","aliases":["CVE-2023-27321"],"modified":"2024-05-08T14:00:59.293640Z","published":"2023-05-05T02:19:39Z","database_specific":{"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2023-05-05T02:19:39Z","nvd_published_at":"2024-05-07T23:15:15Z","cwe_ids":["CWE-400"]},"references":[{"type":"WEB","url":"https://github.com/OPCFoundation/UA-.NETStandard/security/advisories/GHSA-vpf7-r2fv-75m9"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-27321"},{"type":"WEB","url":"https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2023-27321.pdf"},{"type":"PACKAGE","url":"https://github.com/OPCFoundation/UA-.NETStandard"},{"type":"WEB","url":"https://www.zerodayinitiative.com/advisories/ZDI-23-548"}],"affected":[{"package":{"name":"OPCFoundation.NetStandard.Opc.Ua.Server","ecosystem":"NuGet","purl":"pkg:nuget/OPCFoundation.NetStandard.Opc.Ua.Server"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.371.86"}]}],"versions":["1.4.363.104-preview","1.4.363.107","1.4.364.40","1.4.365-gfc341ee8c5","1.4.365.1-preview","1.4.365.10","1.4.365.2","1.4.365.23","1.4.365.48","1.4.366.31-preview","1.4.366.38","1.4.367.100","1.4.367.39","1.4.367.41","1.4.367.42","1.4.367.64-preview","1.4.367.75","1.4.367.95","1.4.368.27-preview","1.4.368.33","1.4.368.52-preview","1.4.368.53","1.4.368.58","1.4.369.30","1.4.370.1","1.4.370.12","1.4.370.9","1.4.371.41","1.4.371.50","1.4.371.60"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/05/GHSA-vpf7-r2fv-75m9/GHSA-vpf7-r2fv-75m9.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}