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{"affected_release": [{"advisory": "RHSA-2021:3143", "cpe": "cpe:/a:redhat:rhel_dotnet:3.1::el7", "package": "rh-dotnet31-dotnet-0:3.1.118-1.el7_9", "product_name": ".NET Core on Red Hat Enterprise Linux", "release_date": "2021-08-11T00:00:00Z"}, {"advisory": "RHSA-2021:3147", "cpe": "cpe:/a:redhat:rhel_dotnet:5.0::el7", "package": "rh-dotnet50-dotnet-0:5.0.206-1.el7_9", "product_name": ".NET Core on Red Hat Enterprise Linux", "release_date": "2021-08-12T00:00:00Z"}, {"advisory": "RHSA-2021:3142", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "dotnet3.1-0:3.1.118-1.el8_4", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-08-11T00:00:00Z"}, {"advisory": "RHSA-2021:3148", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "dotnet5.0-0:5.0.206-1.el8_4", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-08-12T00:00:00Z"}], "bugzilla": {"description": "dotnet: ASP.NET Core WebSocket frame processing DoS", "id": "1990295", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1990295"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-835", "details": [".NET Core and Visual Studio Denial of Service Vulnerability", "An infinite loop error was found in ASP.NET when processing WebSocket frames. The exploitation of this issue can cause high CPU resource consumption. The highest threat from this vulnerability is to system availability."], "name": "CVE-2021-26423", "package_state": [{"cpe": "cpe:/a:redhat:rhel_dotnet:2.1", "fix_state": "Not affected", "package_name": "rh-dotnet21", "product_name": ".NET Core 2.1 on Red Hat Enterprise Linux"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "dotnet", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2021-08-10T17:05:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-26423\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-26423\nhttps://github.com/dotnet/announcements/issues/194\nhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26423"], "threat_severity": "Important"}