{"id":"USN-6427-1","summary":"dotnet6, dotnet7 vulnerability","details":"It was discovered that the .NET Kestrel web server did not properly handle\nHTTP/2 requests. A remote attacker could possibly use this issue to cause a\ndenial of service.\n","modified":"2026-02-10T04:43:22Z","published":"2023-10-10T18:18:10Z","related":["UBUNTU-CVE-2023-44487"],"upstream":["CVE-2023-44487","UBUNTU-CVE-2023-44487"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6427-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-44487"}],"affected":[{"package":{"name":"dotnet6","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/dotnet6@6.0.123-0ubuntu1~22.04.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.123-0ubuntu1~22.04.1"}]}],"versions":["6.0.108-0ubuntu1~22.04.1","6.0.109-0ubuntu1~22.04.1","6.0.110-0ubuntu1~22.04.1","6.0.111-0ubuntu1~22.04.1","6.0.113-0ubuntu1~22.04.1","6.0.116-0ubuntu1~22.04.1","6.0.118-0ubuntu1~22.04.1","6.0.119-0ubuntu1~22.04.1","6.0.120-0ubuntu1~22.04.1","6.0.121-0ubuntu1~22.04.1","6.0.122-0ubuntu1~22.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"aspnetcore-runtime-6.0","binary_version":"6.0.123-0ubuntu1~22.04.1"},{"binary_name":"aspnetcore-targeting-pack-6.0","binary_version":"6.0.123-0ubuntu1~22.04.1"},{"binary_name":"dotnet-apphost-pack-6.0","binary_version":"6.0.123-0ubuntu1~22.04.1"},{"binary_name":"dotnet-host","binary_version":"6.0.123-0ubuntu1~22.04.1"},{"binary_name":"dotnet-hostfxr-6.0","binary_version":"6.0.123-0ubuntu1~22.04.1"},{"binary_name":"dotnet-runtime-6.0","binary_version":"6.0.123-0ubuntu1~22.04.1"},{"binary_name":"dotnet-sdk-6.0","binary_version":"6.0.123-0ubuntu1~22.04.1"},{"binary_name":"dotnet-sdk-6.0-source-built-artifacts","binary_version":"6.0.123-0ubuntu1~22.04.1"},{"binary_name":"dotnet-targeting-pack-6.0","binary_version":"6.0.123-0ubuntu1~22.04.1"},{"binary_name":"dotnet-templates-6.0","binary_version":"6.0.123-0ubuntu1~22.04.1"},{"binary_name":"dotnet6","binary_version":"6.0.123-0ubuntu1~22.04.1"},{"binary_name":"netstandard-targeting-pack-2.1","binary_version":"6.0.123-0ubuntu1~22.04.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6427-1.json","cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"id":"CVE-2023-44487","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"high"}]}]}}},{"package":{"name":"dotnet7","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/dotnet7@7.0.112-0ubuntu1~22.04.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.112-0ubuntu1~22.04.1"}]}],"versions":["7.0.105-0ubuntu1~22.04.1","7.0.107-0ubuntu1~22.04.1","7.0.108-0ubuntu1~22.04.1","7.0.109-0ubuntu1~22.04.1","7.0.110-0ubuntu1~22.04.1","7.0.111-0ubuntu1~22.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"aspnetcore-runtime-7.0","binary_version":"7.0.112-0ubuntu1~22.04.1"},{"binary_name":"aspnetcore-targeting-pack-7.0","binary_version":"7.0.112-0ubuntu1~22.04.1"},{"binary_name":"dotnet-apphost-pack-7.0","binary_version":"7.0.112-0ubuntu1~22.04.1"},{"binary_name":"dotnet-host-7.0","binary_version":"7.0.112-0ubuntu1~22.04.1"},{"binary_name":"dotnet-hostfxr-7.0","binary_version":"7.0.112-0ubuntu1~22.04.1"},{"binary_name":"dotnet-runtime-7.0","binary_version":"7.0.112-0ubuntu1~22.04.1"},{"binary_name":"dotnet-sdk-7.0","binary_version":"7.0.112-0ubuntu1~22.04.1"},{"binary_name":"dotnet-sdk-7.0-source-built-artifacts","binary_version":"7.0.112-0ubuntu1~22.04.1"},{"binary_name":"dotnet-targeting-pack-7.0","binary_version":"7.0.112-0ubuntu1~22.04.1"},{"binary_name":"dotnet-templates-7.0","binary_version":"7.0.112-0ubuntu1~22.04.1"},{"binary_name":"dotnet7","binary_version":"7.0.112-0ubuntu1~22.04.1"},{"binary_name":"netstandard-targeting-pack-2.1-7.0","binary_version":"7.0.112-0ubuntu1~22.04.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6427-1.json","cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"id":"CVE-2023-44487","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"high"}]}]}}}],"schema_version":"1.7.3"}