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Cuando se habilitó HTTP / 2 para un http: host o H2Upgrade se habilitó para h2 en un https: host, una solicitud de actualización de http / 1.1 a http / 2 que no fue la primera solicitud en una conexión podría provocar una mala configuración y un fallo. El servidor que nunca habilitó el protocolo h2 o que solo lo habilitó para https: y no configuró \"H2Upgrade en \" no se ve afectado por este problema."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L","baseScore":4.2,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"LOW"},"exploitabilityScore":1.6,"impactScore":2.5}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:S/C:N/I:P/A:P","baseScore":4.9,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"SINGLE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":6.8,"impactScore":4.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-444"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*","versionStartIncluding":"2.4.34","versionEndIncluding":"2.4.38","matchCriteriaId":"4AF58E59-C3D5-4899-808C-7D2F4DF93DFD"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*","matchCriteriaId":"7A5301BF-1402-4BE0-A0F8-69FBE79BC6D6"},{"vulnerable":true,"criteria":"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*","matchCriteriaId":"23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D"},{"vulnerable":true,"criteria":"cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*","matchCriteriaId":"CD783B0C-9246-47D9-A937-6144FE8BFF0F"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*","matchCriteriaId":"97A4B8DF-58DA-4AB6-A1F9-331B36409BA3"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*","matchCriteriaId":"F1E78106-58E6-4D59-990F-75DA575BFAD9"},{"vulnerable":true,"criteria":"cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:*","matchCriteriaId":"5F65DAB0-3DAD-49FF-BC73-3581CC3D5BF3"}]}]},{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:redhat:jboss_core_services:1.0:*:*:*:*:*:*:*","matchCriteriaId":"A2466282-51AB-478D-9FF4-FA524265ED2E"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*","matchCriteriaId":"2F6AB192-9D7D-4A9A-8995-E53A9DE9EAFC"},{"vulnerable":false,"criteria":"cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*","matchCriteriaId":"142AD0DD-4CF3-4D74-9442-459CE3347E3A"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:communications_session_report_manager:8.0.0:*:*:*:*:*:*:*","matchCriteriaId":"7DDF6809-53A7-4F7D-9FA8-B522BE8F7A21"},{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:communications_session_report_manager:8.1.0:*:*:*:*:*:*:*","matchCriteriaId":"AA86A15F-FAB8-4DF5-95AC-DA3D1CF7A720"},{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:communications_session_report_manager:8.1.1:*:*:*:*:*:*:*","matchCriteriaId":"DB43DFD4-D058-4001-BD19-488E059F4532"},{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:communications_session_report_manager:8.2.0:*:*:*:*:*:*:*","matchCriteriaId":"086E2E5C-44EB-4C07-B298-C04189533996"},{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:communications_session_route_manager:8.0.0:*:*:*:*:*:*:*","matchCriteriaId":"4B042935-BC42-4CA8-9379-7F0F894F9653"},{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:communications_session_route_manager:8.1.0:*:*:*:*:*:*:*","matchCriteriaId":"3B374F86-4EC8-4797-A8C3-5C1FF1DFC9F8"},{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:communications_session_route_manager:8.1.1:*:*:*:*:*:*:*","matchCriteriaId":"5682DAEB-3810-4541-833A-568C868BCE0B"},{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:communications_session_route_manager:8.2.0:*:*:*:*:*:*:*","matchCriteriaId":"01BC9AED-F81D-4344-AD97-EEF19B6EA8C7"},{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.3:*:*:*:*:*:*:*","matchCriteriaId":"AB654DFA-FEF9-4D00-ADB0-F3F2B6ACF13E"},{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0:*:*:*:*:*:*:*","matchCriteriaId":"37209C6F-EF99-4D21-9608-B3A06D283D24"},{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:*","matchCriteriaId":"DFC79B17-E9D2-44D5-93ED-2F959E7A3D43"},{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:*","matchCriteriaId":"82EA4BA7-C38B-4AF3-8914-9E3D089EBDD4"},{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*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