{"id":"CVE-2019-9518","details":"Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSH_PROMISE. The peer spends time processing each frame disproportionate to attack bandwidth. This can consume excess CPU.","modified":"2026-02-22T08:23:31.547373Z","published":"2019-08-13T21:15:13.003Z","related":["ALSA-2019:2925","MGASA-2020-0372","SUSE-SU-2019:14246-1","SUSE-SU-2019:2254-1","SUSE-SU-2019:2259-1","SUSE-SU-2019:2260-1","SUSE-SU-2020:0059-1","openSUSE-SU-2019:2114-1","openSUSE-SU-2019:2115-1"],"references":[{"type":"WEB","url":"https://kb.cert.org/vuls/id/605641/"},{"type":"WEB","url":"https://lists.apache.org/thread.html/091b518265bce56a16af87b77c8cfacda902a02079e866f9fdf13b61%40%3Cusers.trafficserver.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/2653c56545573b528f3f6352a29eccaf498bd6fb2a6a59568d81a61d%40%3Cannounce.trafficserver.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/9317fd092b257a0815434b116a8af8daea6e920b6673f4fd5583d5fe%40%3Ccommits.druid.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/ff5b0821a6985159a832ff6d1a4bd311ac07ecc7db1e2d8bab619107%40%3Cdev.trafficserver.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r99a625fb17032646d96cd23dec49603ff630e9318e44a686d63046bc%40%3Ccommits.cassandra.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rd31230d01fa6aad18bdadc0720acd1747e53690bd35f73a48e7a9b75%40%3Ccommits.cassandra.apache.org%3E"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/"},{"type":"WEB","url":"https://support.f5.com/csp/article/K46011592?utm_source=f5support&amp%3Butm_medium=RSS"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html"},{"type":"ADVISORY","url":"http://seclists.org/fulldisclosure/2019/Aug/16"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:2925"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:2939"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:2955"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:3892"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2019:4352"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2020:0727"},{"type":"ADVISORY","url":"https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md"},{"type":"ADVISORY","url":"https://kb.cert.org/vuls/id/605641/"},{"type":"ADVISORY","url":"https://kc.mcafee.com/corporate/index?page=content&id=SB10296"},{"type":"ADVISORY","url":"https://seclists.org/bugtraq/2019/Aug/24"},{"type":"ADVISORY","url":"https://seclists.org/bugtraq/2019/Sep/18"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20190823-0005/"},{"type":"ADVISORY","url":"https://support.f5.com/csp/article/K46011592"},{"type":"ADVISORY","url":"https://www.debian.org/security/2019/dsa-4520"},{"type":"ADVISORY","url":"https://www.synology.com/security/advisory/Synology_SA_19_33"},{"type":"ARTICLE","url":"http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00031.html"},{"type":"ARTICLE","url":"http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00032.html"},{"type":"ARTICLE","url":"http://seclists.org/fulldisclosure/2019/Aug/16"},{"type":"ARTICLE","url":"https://seclists.org/bugtraq/2019/Aug/24"},{"type":"ARTICLE","url":"https://seclists.org/bugtraq/2019/Sep/18"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nodejs/node","events":[{"introduced":"2f45ad8060e13d5ac912335096d21526f2f9602b"},{"fixed":"787378879acfb212ed4ff824bf9f767a24a5cb43"},{"introduced":"ab4af087e83d91a46354d765306d3543b1d85423"},{"fixed":"75657ee41677d56a498e298b01d049aef5bf199f"},{"introduced":"f6fc46e03674ab1896792b7363ecac0665b5e0c5"},{"fixed":"eb66efd6052801e2f10360c51787569da0185808"},{"introduced":"f76ce0a75641991bfc235775a4747c978e0e281b"},{"fixed":"5744b466c45d5324c60f122b02681813d4496749"}]}],"versions":["v10.13.0","v10.14.0","v10.14.1","v10.14.2","v10.15.0","v10.15.1","v10.15.2","v10.15.3","v10.16.0","v10.16.1","v10.16.2","v12.0.0","v12.1.0","v12.2.0","v12.3.0","v12.3.1","v12.4.0","v12.5.0","v12.6.0","v12.7.0","v12.8.0","v8.1.0","v8.1.1","v8.1.2","v8.1.3","v8.1.4"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-9518.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}