{"answers":{"affected":"27 open source packages ship an affected version, including Microsoft.NETCore.App, dotnet and dotnet-sdk. It affects 7 products.","exploited":"There is no known exploitation of CVE-2020-1108 in the wild and no public exploit code.","fix":"Upgrade Microsoft.NETCore.App to 2.1.18 or later.","what":"CVE-2020-1108 is a high-severity denial of service vulnerability in Microsoft .Net, published on 21 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-1108 and fix it if it is affected.\n\nWhat it is: CVE-2020-1108 is a high-severity denial of service vulnerability in Microsoft .Net, published on 21 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-1108 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- Microsoft.NETCore.App (NuGet): affected from 2.1.0; fixed in 2.1.18\n- Microsoft.NETCore.App (NuGet): affected from 2.1.0; fixed in 2.1.18\n- dotnet (Bitnami): affected from 5.0-preview1.0 up to 5.0-preview1.0; no fix listed\n- dotnet-sdk (Bitnami): affected from 5.0-preview1.0 up to 5.0-preview1.0; no fix listed\n- powershell (Bitnami): affected from 7.0.0 up to 7.0.0; no fix listed\n- Microsoft.NETCore.App.Runtime.linux-arm (NuGet): affected from 3.1.0; fixed in 3.1.4\n- Microsoft.NETCore.App.Runtime.linux-arm (NuGet): affected from 3.1.0; fixed in 3.1.4\n- Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet): affected from 3.1.0; fixed in 3.1.4\n- Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet): affected from 3.1.0; fixed in 3.1.4\n- Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet): affected from 3.1.0; fixed in 3.1.4\n- Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet): affected from 3.1.0; fixed in 3.1.4\n- Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet): affected from 3.1.0; fixed in 3.1.4\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2020-1108/ (Markdown: https://insights.sbomify.com/CVE-2020-1108/index.md)","id":"CVE-2020-1108","markdown":"https://insights.sbomify.com/CVE-2020-1108/index.md","name":"CVE-2020-1108","record":{"aliases":["BIT-dotnet-2020-1108","BIT-dotnet-sdk-2020-1108","BIT-powershell-2020-1108","GHSA-3w5p-jhp5-c29q","RHSA-2020:2143","RHSA-2020:2146","RHSA-2020:2450","RHSA-2020:2471","RHSA-2020:2475","RHSA-2020:2476"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":".NET Framework","requires_auth":"none","summary":"Remote unauthenticated attackers can cause denial of service in .NET web applications by sending specially crafted requests.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":".net","vendor":"microsoft"},{"product":".net_core","vendor":"microsoft"},{"product":".net_framework","vendor":"microsoft"},{"product":"powershell","vendor":"microsoft"},{"product":"powershell_core","vendor":"microsoft"},{"product":"visual_studio_2017","vendor":"microsoft"},{"product":"visual_studio_2019","vendor":"microsoft"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[],"description":"A denial of service vulnerability exists when .NET Core or .NET Framework improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against a .NET Core or .NET Framework web application. The vulnerability can be exploited remotely, without authentication.\nA remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the .NET Core or .NET Framework application.\nThe update addresses the vulnerability by correcting how the .NET Core or .NET Framework web application handles web requests.","ecosystems":["Bitnami","NuGet","Red Hat:enterprise_linux:8::appstream","Red Hat:rhel_dotnet:2.1::el7","Red Hat:rhel_dotnet:3.1::el7"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":".NET Core \u0026 .NET Framework Denial of Service Vulnerability","id":"CVE-2020-1108","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"microsoft:.net","products":["microsoft:.net","microsoft:.net_framework","microsoft:visual_studio_2017","microsoft:visual_studio_2019"],"type":"denial_of_service","year":"2020"},"n_packages":94,"n_references":1,"next":{"headline":"Windows Update Stack Elevation of Privilege Vulnerability","id":"CVE-2020-1109"},"packages":[{"ecosystem":"Bitnami","fixed":[],"introduced":["5.0-preview1.0","5.0-preview2.0","5.0-preview3.0"],"last_affected":["5.0-preview1.0","5.0-preview2.0","5.0-preview3.0"],"package":"dotnet","purl":"pkg:bitnami/dotnet","source":"BIT-dotnet-2020-1108"},{"ecosystem":"Bitnami","fixed":[],"introduced":["5.0-preview1.0","5.0-preview2.0","5.0-preview3.0"],"last_affected":["5.0-preview1.0","5.0-preview2.0","5.0-preview3.0"],"package":"dotnet-sdk","purl":"pkg:bitnami/dotnet-sdk","source":"BIT-dotnet-sdk-2020-1108"},{"ecosystem":"Bitnami","fixed":[],"introduced":["7.0.0"],"last_affected":["7.0.0"],"package":"powershell","purl":"pkg:bitnami/powershell","source":"BIT-powershell-2020-1108"},{"ecosystem":"NuGet","fixed":["2.1.18"],"introduced":["2.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App","purl":null,"source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["2.1.18"],"introduced":["2.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App","purl":"pkg:nuget/Microsoft.NETCore.App","source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm","purl":null,"source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-arm","source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm64","purl":null,"source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-arm64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-arm64","source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-arm64","purl":null,"source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-arm64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-musl-arm64","source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-x64","purl":null,"source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-musl-x64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-musl-x64","source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-x64","purl":null,"source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.linux-x64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.linux-x64","source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.osx-x64","purl":null,"source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.osx-x64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.osx-x64","source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.rhel.6-x64","purl":null,"source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.rhel.6-x64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.rhel.6-x64","source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-arm","purl":null,"source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-arm","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.win-arm","source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-arm64","purl":null,"source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-arm64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.win-arm64","source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x64","purl":null,"source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x64","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.win-x64","source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x86","purl":null,"source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"NuGet","fixed":["3.1.4"],"introduced":["3.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App.Runtime.win-x86","purl":"pkg:nuget/Microsoft.NETCore.App.Runtime.win-x86","source":"GHSA-3w5p-jhp5-c29q"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.1.5-2.el8_2"],"introduced":["0"],"last_affected":[],"package":"aspnetcore-runtime-3.1","purl":"pkg:rpm/redhat/aspnetcore-runtime-3.1","source":"RHSA-2020:2450"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.1.5-2.el8_2"],"introduced":["0"],"last_affected":[],"package":"aspnetcore-targeting-pack-3.1","purl":"pkg:rpm/redhat/aspnetcore-targeting-pack-3.1","source":"RHSA-2020:2450"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.1.514-2.el8_2"],"introduced":["0"],"last_affected":[],"package":"dotnet","purl":"pkg:rpm/redhat/dotnet","source":"RHSA-2020:2143"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.1.515-1.el8_2"],"introduced":["0"],"last_affected":[],"package":"dotnet","purl":"pkg:rpm/redhat/dotnet","source":"RHSA-2020:2471"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.1.105-2.el8_2"],"introduced":["0"],"last_affected":[],"package":"dotnet","purl":"pkg:rpm/redhat/dotnet","source":"RHSA-2020:2450"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.1.5-2.el8_2"],"introduced":["0"],"last_affected":[],"package":"dotnet-apphost-pack-3.1","purl":"pkg:rpm/redhat/dotnet-apphost-pack-3.1","source":"RHSA-2020:2450"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.1.5-2.el8_2"],"introduced":["0"],"last_affected":[],"package":"dotnet-apphost-pack-3.1-debuginfo","purl":"pkg:rpm/redhat/dotnet-apphost-pack-3.1-debuginfo","source":"RHSA-2020:2450"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.1.514-2.el8_2"],"introduced":["0"],"last_affected":[],"package":"dotnet-debuginfo","purl":"pkg:rpm/redhat/dotnet-debuginfo","source":"RHSA-2020:2143"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.1.515-1.el8_2"],"introduced":["0"],"last_affected":[],"package":"dotnet-debuginfo","purl":"pkg:rpm/redhat/dotnet-debuginfo","source":"RHSA-2020:2471"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.1.514-2.el8_2"],"introduced":["0"],"last_affected":[],"package":"dotnet-debugsource","purl":"pkg:rpm/redhat/dotnet-debugsource","source":"RHSA-2020:2143"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.1.515-1.el8_2"],"introduced":["0"],"last_affected":[],"package":"dotnet-debugsource","purl":"pkg:rpm/redhat/dotnet-debugsource","source":"RHSA-2020:2471"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.1.5-2.el8_2"],"introduced":["0"],"last_affected":[],"package":"dotnet-host","purl":"pkg:rpm/redhat/dotnet-host","source":"RHSA-2020:2450"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:3.1.5-2.el8_2"],"introduced":["0"],"last_affected":[],"package":"dotnet-host-debuginfo","purl":"pkg:rpm/redhat/dotnet-host-debuginfo","source":"RHSA-2020:2450"}],"prev":{"headline":"Microsoft SharePoint Spoofing Vulnerability","id":"CVE-2020-1107"},"products":[".NET 5.0",".NET Core 2.1",".NET Core 3.1","Microsoft .NET Framework 2.0 Service Pack 2","Microsoft .NET Framework 3.0 Service Pack 2","Microsoft .NET Framework 3.5","Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2","Microsoft .NET Framework 3.5 AND 4.6/4.6.1/4.6.2","Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2","Microsoft .NET Framework 3.5 AND 4.7.2","Microsoft .NET Framework 3.5 AND 4.8","Microsoft .NET Framework 3.5.1","Microsoft .NET Framework 4.5.2","Microsoft .NET Framework 4.6","Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2","Microsoft .NET Framework 4.8","Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)","Microsoft Visual Studio 2019 version 16.0","Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)","Microsoft Visual Studio 2019 version 16.5","PowerShell 7.0","PowerShell Core 6.2"],"published":"2020-05-21","related":[{"cvss_score":9.8,"headline":".NET and Visual Studio Remote Code Execution Vulnerability","id":"CVE-2024-43498","kev_date_added":null,"published":"2024-11-12"},{"cvss_score":9.1,"headline":"NET, .NET Framework, and Visual Studio Security Feature Bypass Vulnerability","id":"CVE-2024-0057","kev_date_added":null,"published":"2024-01-09"},{"cvss_score":8.8,"headline":".NET Security Feature Bypass Vulnerability","id":"CVE-2026-96957","kev_date_added":null,"published":"2026-10-13"},{"cvss_score":8.8,"headline":".NET and Visual Studio Elevation of Privilege Vulnerability","id":"CVE-2026-69439","kev_date_added":null,"published":"2026-09-08"},{"cvss_score":8.8,"headline":".NET and Visual Studio Remote Code Execution Vulnerability","id":"CVE-2026-71328","kev_date_added":null,"published":"2026-09-08"},{"cvss_score":8.8,"headline":"ASP.NET Core Elevation of Privilege Vulnerability","id":"CVE-2026-47300","kev_date_added":null,"published":"2026-07-14"},{"cvss_score":8.8,"headline":"ASP.NET Core Elevation of Privilege Vulnerability","id":"CVE-2026-47303","kev_date_added":null,"published":"2026-07-14"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-08-19","vendors":["Microsoft"]},"summary":"Remote unauthenticated attackers can cause denial of service in .NET web applications by sending specially crafted requests.","url":"https://insights.sbomify.com/CVE-2020-1108/"}