{"answers":{"affected":"6 open source packages ship an affected version, including Microsoft.AspNetCore.All, Microsoft.AspNetCore.App and System.IO.Pipelines. It affects 3 products.","exploited":"There is no known exploitation of CVE-2018-8409 in the wild and no public exploit code.","fix":"Upgrade Microsoft.AspNetCore.All to 2.1.4 or later.","what":"CVE-2018-8409 is a high-severity denial of service vulnerability in Microsoft .NET Core, published on 13 Sep 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-8409 and fix it if it is affected.\n\nWhat it is: CVE-2018-8409 is a high-severity denial of service vulnerability in Microsoft .NET Core, published on 13 Sep 2018. 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-2018-8409 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- Microsoft.AspNetCore.All (NuGet): affected from 2.1.0; fixed in 2.1.4\n- Microsoft.AspNetCore.All (NuGet): affected from 2.1.0; fixed in 2.1.4\n- Microsoft.AspNetCore.App (NuGet): affected from 2.1.0; fixed in 2.1.4\n- Microsoft.AspNetCore.App (NuGet): affected from 2.1.0; fixed in 2.1.4\n- System.IO.Pipelines (NuGet): affected from 4.5.0; fixed in 4.5.1\n- System.IO.Pipelines (NuGet): affected from 4.5.0; fixed in 4.5.1\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-2018-8409/ (Markdown: https://insights.sbomify.com/CVE-2018-8409/index.md)","id":"CVE-2018-8409","markdown":"https://insights.sbomify.com/CVE-2018-8409/index.md","name":"CVE-2018-8409","record":{"aliases":["GHSA-j378-6mmw-hqfr"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"System.IO.Pipelines library","requires_auth":"none","summary":"Attackers can cause a denial of service by sending improperly handled requests to applications using the System.IO.Pipelines library.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":".net_core","vendor":"microsoft"},{"product":"asp.net_core","vendor":"microsoft"},{"product":"system.io.pipelines","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 System.IO.Pipelines improperly handles requests, aka \"System.IO.Pipelines Denial of Service.\" This affects .NET Core 2.1, System.IO.Pipelines, ASP.NET Core 2.1.","ecosystems":["NuGet"],"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":"Denial of service vulnerability exists when System.IO.Pipelines improperly handles requests","id":"CVE-2018-8409","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"NuGet","product":null,"products":[],"type":"denial_of_service","year":"2018"},"n_packages":6,"n_references":2,"next":{"headline":"Privilege escalation in Windows 10","id":"CVE-2018-8410"},"packages":[{"ecosystem":"NuGet","fixed":["2.1.4"],"introduced":["2.1.0"],"last_affected":[],"package":"Microsoft.AspNetCore.All","purl":null,"source":"GHSA-j378-6mmw-hqfr"},{"ecosystem":"NuGet","fixed":["2.1.4"],"introduced":["2.1.0"],"last_affected":[],"package":"Microsoft.AspNetCore.All","purl":"pkg:nuget/Microsoft.AspNetCore.All","source":"GHSA-j378-6mmw-hqfr"},{"ecosystem":"NuGet","fixed":["2.1.4"],"introduced":["2.1.0"],"last_affected":[],"package":"Microsoft.AspNetCore.App","purl":null,"source":"GHSA-j378-6mmw-hqfr"},{"ecosystem":"NuGet","fixed":["2.1.4"],"introduced":["2.1.0"],"last_affected":[],"package":"Microsoft.AspNetCore.App","purl":"pkg:nuget/Microsoft.AspNetCore.App","source":"GHSA-j378-6mmw-hqfr"},{"ecosystem":"NuGet","fixed":["4.5.1"],"introduced":["4.5.0"],"last_affected":[],"package":"System.IO.Pipelines","purl":null,"source":"GHSA-j378-6mmw-hqfr"},{"ecosystem":"NuGet","fixed":["4.5.1"],"introduced":["4.5.0"],"last_affected":[],"package":"System.IO.Pipelines","purl":"pkg:nuget/System.IO.Pipelines","source":"GHSA-j378-6mmw-hqfr"}],"prev":{"headline":"Information disclosure in Windows 10","id":"CVE-2018-8408"},"products":[".NET Core","ASP.NET Core","System.IO.Pipelines"],"published":"2018-09-13","related":[{"cvss_score":7.8,"headline":"Microsoft .NET Framework, SharePoint, and Visual Studio Remote Code Execution","id":"CVE-2020-1147","kev_date_added":"2021-11-03","published":"2020-07-14"},{"cvss_score":8.8,"headline":"Code injection in .NET Core","id":"CVE-2020-0605","kev_date_added":null,"published":"2020-01-14"},{"cvss_score":8.8,"headline":"Remote code execution in Microsoft.WindowsDesktop.App.Ref","id":"CVE-2020-0606","kev_date_added":null,"published":"2020-01-14"},{"cvss_score":7.5,"headline":"High severity vulnerability that affects System.Management.Automation","id":"CVE-2019-1301","kev_date_added":null,"published":"2019-09-11"},{"cvss_score":7.5,"headline":"Regular Expression Denial of Service in System.Text.RegularExpressions","id":"CVE-2019-0820","kev_date_added":null,"published":"2019-05-16"},{"cvss_score":7.5,"headline":"Denial of service in ASP.NET Core","id":"CVE-2019-0980","kev_date_added":null,"published":"2019-05-16"},{"cvss_score":7.5,"headline":"Denial of service in ASP.NET Core","id":"CVE-2019-0981","kev_date_added":null,"published":"2019-05-16"}],"sources":[{"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":"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":"2024-08-05","vendors":["Microsoft"]},"summary":"Attackers can cause a denial of service by sending improperly handled requests to applications using the System.IO.Pipelines library.","url":"https://insights.sbomify.com/CVE-2018-8409/"}