{"schema_version":"1.7.5","id":"CVE-2019-9517","published":"2019-08-13T21:15:12.647Z","modified":"2026-07-08T05:55:11.517280893Z","related":["ALSA-2019:2925","SUSE-SU-2019:14246-1","SUSE-SU-2019:2237-1","SUSE-SU-2019:2254-1","SUSE-SU-2019:2259-1","SUSE-SU-2019:2260-1","SUSE-SU-2019:2329-1","SUSE-SU-2020:0059-1","openSUSE-SU-2019:2051-1","openSUSE-SU-2019:2114-1","openSUSE-SU-2019:2115-1","openSUSE-SU-2024:10623-1"],"details":"Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write (many of) the bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the servers queue the responses, this can consume excess memory, CPU, or both.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/httpd","events":[{"introduced":"6e65a7f3dadcade4274ae53f734d4c35188e3786"},{"fixed":"32a08e34411eef12ae60a7cbc3df3cb58e0c0135"}],"database_specific":{"cpe":"cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"2.4.20"},{"fixed":"2.4.40"}],"source":"CPE_RANGE"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-9517.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/apache/trafficserver","events":[{"introduced":"27f8e2cda9133864e6ffae0224c799fde5f10290"},{"last_affected":"eaed59510bda6f1d27854d9d3f07aace2afffc16"},{"introduced":"6c1c6cf20e7d0e287d697a0f4181436013d17c30"},{"last_affected":"e249f4a2c70ead73b281948459eb6369b3cbfaa4"},{"introduced":"b310e3566f58dd04ec2b15b111ec86ea70e20019"},{"last_affected":"e92757040355baa6edc8896564e2e49d5232e149"}],"database_specific":{"cpe":"cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"6.0.0"},{"last_affected":"6.2.3"},{"introduced":"7.0.0"},{"last_affected":"7.1.6"},{"introduced":"8.0.0"},{"last_affected":"8.0.3"}],"source":"CPE_RANGE"}}],"versions":["8.0.3-rc0","8.0.3","8.0.2-rc0","8.0.2","8.0.1-rc0","8.0.1","8.0.0-rc4","8.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-9517.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/apple/swift-nio","events":[{"introduced":"4fb0cc68fee45d2ae714484b5979316943ef1f24"},{"last_affected":"d94ab56d58c8559ebe5d65cc35510f40f6cc2932"}],"database_specific":{"cpe":"cpe:2.3:a:apple:swiftnio:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"1.0.0"},{"last_affected":"1.4.0"}],"source":"CPE_RANGE"}}],"versions":["1.2.1","1.3.1","1.0.0","1.1.0","1.4.0","1.3.0","1.2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-9517.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/nodejs/node","events":[{"introduced":"0d8021e5a4cf0a6aa3a700a361f6d42c2894f2ba"},{"last_affected":"dc6bbb44daec5584a0fbd37f0916baeff3202dba"},{"introduced":"f76ce0a75641991bfc235775a4747c978e0e281b"},{"fixed":"5744b466c45d5324c60f122b02681813d4496749"},{"introduced":"cf41627411886000429bde058a6594fb7f6d6d47"},{"last_affected":"4a276cc2a960b3f9a138ac3a99c9249a63b4d472"},{"introduced":"ab4af087e83d91a46354d765306d3543b1d85423"},{"fixed":"75657ee41677d56a498e298b01d049aef5bf199f"},{"introduced":"2f45ad8060e13d5ac912335096d21526f2f9602b"},{"fixed":"787378879acfb212ed4ff824bf9f767a24a5cb43"}],"database_specific":{"cpe":["cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*","cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*"],"extracted_events":[{"introduced":"8.0.0"},{"last_affected":"8.8.1"},{"introduced":"8.9.0"},{"fixed":"8.16.1"},{"introduced":"10.0.0"},{"last_affected":"10.12.0"},{"introduced":"10.13.0"},{"fixed":"10.16.3"},{"introduced":"12.0.0"},{"fixed":"12.8.1"}],"source":"CPE_RANGE"}}],"versions":["v12.8.0","v10.16.2","v10.16.1","v12.7.0","v12.6.0","v12.5.0","v12.4.0","v10.16.0","v12.3.1","v12.3.0","v12.2.0","v12.1.0","v12.0.0","v8.16.0","v10.15.3","v8.15.1","v10.15.2","v10.15.1","v8.15.0","v10.15.0","v8.14.1","v10.14.2","v10.14.1","v10.14.0","v8.14.0","v8.13.0","v10.13.0","v10.12.0","v10.11.0","v8.12.0","v10.10.0","v10.9.0","v8.11.4","v10.8.0","v10.7.0","v10.6.0","v10.5.0","v10.4.1","v8.11.3","v10.4.0","v10.3.0","v10.2.1","v10.2.0","v8.11.2","v10.1.0","v10.0.0","v8.11.1","v8.11.0","v8.10.0","v8.9.4","v8.9.3","v8.9.2","v8.9.1","v8.9.0","v8.8.1","v8.8.0","v8.7.0","v8.6.0","v8.5.0","v8.4.0","v8.3.0","v8.2.1","v8.2.0","v8.1.4","v8.1.3","v8.1.2","v8.1.1","v8.1.0","v8.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-9517.json"}}],"references":[{"type":"WEB","url":"https://lists.apache.org/thread.html/4610762456644181b267c846423b3a990bd4aaea1886ecc7d51febdb%40%3Cannounce.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/d89f999e26dfb1d50f247ead1fe8538014eb412b2dbe5be4b1a9ef50%40%3Cdev.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/ec97fdfc1a859266e56fef084353a34e0a0b08901b3c1aa317a43c8c%40%3Cdev.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r03ee478b3dda3e381fd6189366fa7af97c980d2f602846eef935277d%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r3c5c3104813c1c5508b55564b66546933079250a46ce50eee90b2e36%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E"},{"type":"W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