{"id":"CVE-2016-6817","details":"The HTTP/2 header parser in Apache Tomcat 9.0.0.M1 to 9.0.0.M11 and 8.5.0 to 8.5.6 entered an infinite loop if a header was received that was larger than the available buffer. This made a denial of service attack possible.","aliases":["GHSA-698c-2x4j-g9gq"],"modified":"2026-07-08T12:41:39.769601Z","published":"2017-08-10T22:29:00.233Z","references":[{"type":"WEB","url":"https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3%40%3Cdev.tomcat.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a%40%3Cdev.tomcat.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/a9f24571460af003071475b75f18cad81ebcc36fa7c876965a75e32a%40%3Cannounce.tomcat.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3E"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/94462"},{"type":"ADVISORY","url":"http://www.securitytracker.com/id/1037330"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20180607-0001/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/tomcat","events":[{"introduced":"e37b977db6f47e4380ad67114a49e8568951c953"},{"last_affected":"45f8fd74cdb96490fab8709263a4d862f0d429cf"}],"database_specific":{"cpe":["cpe:2.3:a:apache:tomcat:8.5.0:*:*:*:*:*:*:*","cpe:2.3:a:apache:tomcat:8.5.1:*:*:*:*:*:*:*","cpe:2.3:a:apache:tomcat:8.5.2:*:*:*:*:*:*:*","cpe:2.3:a:apache:tomcat:8.5.3:*:*:*:*:*:*:*","cpe:2.3:a:apache:tomcat:8.5.4:*:*:*:*:*:*:*","cpe:2.3:a:apache:tomcat:8.5.5:*:*:*:*:*:*:*","cpe:2.3:a:apache:tomcat:8.5.6:*:*:*:*:*:*:*","cpe:2.3:a:apache:tomcat:9.0.0:milestone1:*:*:*:*:*:*","cpe:2.3:a:apache:tomcat:9.0.0:milestone10:*:*:*:*:*:*","cpe:2.3:a:apache:tomcat:9.0.0:milestone11:*:*:*:*:*:*","cpe:2.3:a:apache:tomcat:9.0.0:milestone2:*:*:*:*:*:*","cpe:2.3:a:apache:tomcat:9.0.0:milestone3:*:*:*:*:*:*","cpe:2.3:a:apache:tomcat:9.0.0:milestone4:*:*:*:*:*:*","cpe:2.3:a:apache:tomcat:9.0.0:milestone5:*:*:*:*:*:*","cpe:2.3:a:apache:tomcat:9.0.0:milestone6:*:*:*:*:*:*","cpe:2.3:a:apache:tomcat:9.0.0:milestone7:*:*:*:*:*:*","cpe:2.3:a:apache:tomcat:9.0.0:milestone8:*:*:*:*:*:*","cpe:2.3:a:apache:tomcat:9.0.0:milestone9:*:*:*:*:*:*"],"extracted_events":[{"introduced":"8.5.0"},{"last_affected":"8.5.0"},{"introduced":"8.5.1"},{"last_affected":"8.5.1"},{"introduced":"8.5.2"},{"last_affected":"8.5.2"},{"introduced":"8.5.3"},{"last_affected":"8.5.3"},{"introduced":"8.5.4"},{"last_affected":"8.5.4"},{"introduced":"8.5.5"},{"last_affected":"8.5.5"},{"introduced":"8.5.6"},{"last_affected":"8.5.6"},{"introduced":"9.0.0-milestone1"},{"last_affected":"9.0.0-milestone1"},{"introduced":"9.0.0-milestone10"},{"last_affected":"9.0.0-milestone10"},{"introduced":"9.0.0-milestone11"},{"last_affected":"9.0.0-milestone11"},{"introduced":"9.0.0-milestone2"},{"last_affected":"9.0.0-milestone2"},{"introduced":"9.0.0-milestone3"},{"last_affected":"9.0.0-milestone3"},{"introduced":"9.0.0-milestone4"},{"last_affected":"9.0.0-milestone4"},{"introduced":"9.0.0-milestone5"},{"last_affected":"9.0.0-milestone5"},{"introduced":"9.0.0-milestone6"},{"last_affected":"9.0.0-milestone6"},{"introduced":"9.0.0-milestone7"},{"last_affected":"9.0.0-milestone7"},{"introduced":"9.0.0-milestone8"},{"last_affected":"9.0.0-milestone8"},{"introduced":"9.0.0-milestone9"},{"last_affected":"9.0.0-milestone9"}],"source":"CPE_STRING"}}],"versions":["8.5.0","8.5.1","8.5.2","8.5.3","8.5.4","8.5.5","8.5.6","9.0.0-milestone1","9.0.0-milestone10","9.0.0-milestone11","9.0.0-milestone2","9.0.0-milestone3","9.0.0-milestone4","9.0.0-milestone5","9.0.0-milestone6","9.0.0-milestone7","9.0.0-milestone8","9.0.0-milestone9"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-6817.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}