{"answers":{"affected":"It affects 23 products.","exploited":"There is no known exploitation of CVE-2019-9517 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2019-9517 is a high-severity denial of service vulnerability in Apache Http Server, published on 13 Aug 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-9517 and fix it if it is affected.\n\nWhat it is: CVE-2019-9517 is a high-severity denial of service vulnerability in Apache Http Server, published on 13 Aug 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2019-9517 in the wild and no public exploit code.\n\nAffected product: Apache Http Server. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2019-9517/ (Markdown: https://insights.sbomify.com/CVE-2019-9517/index.md)","id":"CVE-2019-9517","markdown":"https://insights.sbomify.com/CVE-2019-9517/index.md","name":"CVE-2019-9517","record":{"aliases":["ALPINE-CVE-2019-9517","CLEANSTART-2026-VK65361","CLEANSTART-2026-XC13093","CLEANSTART-2026-XM65075","DEBIAN-CVE-2019-9517","GHSA-w6v5-q8c8-52xx","RHSA-2019:2893","UBUNTU-CVE-2019-9517"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"HTTP/2 server implementation","requires_auth":"none","summary":"Attackers can cause denial of service in HTTP/2 servers by exploiting unconstrained internal data buffering via manipulated TCP and HTTP/2 windows.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"certcc","cpe":[{"product":"http_server","vendor":"apache"},{"product":"traffic_server","vendor":"apache"},{"product":"swiftnio","vendor":"apple"},{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"web_gateway","vendor":"mcafee"},{"product":"clustered_data_ontap","vendor":"netapp"},{"product":"node.js","vendor":"nodejs"},{"product":"leap","vendor":"opensuse"},{"product":"communications_element_manager","vendor":"oracle"},{"product":"graalvm","vendor":"oracle"},{"product":"instantis_enterprisetrack","vendor":"oracle"},{"product":"retail_xstore_point_of_service","vendor":"oracle"},{"product":"enterprise_linux","vendor":"redhat"},{"product":"jboss_core_services","vendor":"redhat"},{"product":"jboss_enterprise_application_platform","vendor":"redhat"},{"product":"openshift_service_mesh","vendor":"redhat"},{"product":"quay","vendor":"redhat"},{"product":"software_collections","vendor":"redhat"},{"product":"diskstation_manager","vendor":"synology"},{"product":"skynas","vendor":"synology"},{"product":"vs960hd_firmware","vendor":"synology"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"},{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"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.","ecosystems":["Red Hat:enterprise_linux:8::appstream"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Denial of service in n/a","id":"CVE-2019-9517","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"apache:http_server","products":["apache:http_server","apache:traffic_server","canonical:ubuntu_linux","debian:debian_linux","fedoraproject:fedora","netapp:clustered_data_ontap","nodejs:node.js","opensuse:leap","oracle:communications_element_manager","oracle:graalvm","oracle:instantis_enterprisetrack","oracle:retail_xstore_point_of_service","redhat:enterprise_linux","redhat:jboss_enterprise_application_platform","redhat:software_collections","synology:diskstation_manager"],"type":"denial_of_service","year":"2019"},"n_packages":21,"n_references":47,"next":{"headline":"Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service","id":"CVE-2019-9518"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.4.37-12.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"httpd","purl":"pkg:rpm/redhat/httpd","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.4.37-12.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"httpd-debuginfo","purl":"pkg:rpm/redhat/httpd-debuginfo","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.4.37-12.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"httpd-debugsource","purl":"pkg:rpm/redhat/httpd-debugsource","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.4.37-12.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"httpd-devel","purl":"pkg:rpm/redhat/httpd-devel","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.4.37-12.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"httpd-filesystem","purl":"pkg:rpm/redhat/httpd-filesystem","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.4.37-12.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"httpd-manual","purl":"pkg:rpm/redhat/httpd-manual","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.4.37-12.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"httpd-tools","purl":"pkg:rpm/redhat/httpd-tools","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.4.37-12.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"httpd-tools-debuginfo","purl":"pkg:rpm/redhat/httpd-tools-debuginfo","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.11.3-3.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"mod_http2","purl":"pkg:rpm/redhat/mod_http2","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.11.3-3.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"mod_http2-debuginfo","purl":"pkg:rpm/redhat/mod_http2-debuginfo","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.11.3-3.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"mod_http2-debugsource","purl":"pkg:rpm/redhat/mod_http2-debugsource","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.4.37-12.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"mod_ldap","purl":"pkg:rpm/redhat/mod_ldap","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.4.37-12.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"mod_ldap-debuginfo","purl":"pkg:rpm/redhat/mod_ldap-debuginfo","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.4.37-12.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"mod_md","purl":"pkg:rpm/redhat/mod_md","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.4.37-12.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"mod_md-debuginfo","purl":"pkg:rpm/redhat/mod_md-debuginfo","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:2.4.37-12.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"mod_proxy_html","purl":"pkg:rpm/redhat/mod_proxy_html","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:2.4.37-12.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"mod_proxy_html-debuginfo","purl":"pkg:rpm/redhat/mod_proxy_html-debuginfo","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.4.37-12.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"mod_session","purl":"pkg:rpm/redhat/mod_session","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:2.4.37-12.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"mod_session-debuginfo","purl":"pkg:rpm/redhat/mod_session-debuginfo","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:2.4.37-12.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"mod_ssl","purl":"pkg:rpm/redhat/mod_ssl","source":"RHSA-2019:2893"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:2.4.37-12.module+el8.0.0+4096+eb40e6da"],"introduced":["0"],"last_affected":[],"package":"mod_ssl-debuginfo","purl":"pkg:rpm/redhat/mod_ssl-debuginfo","source":"RHSA-2019:2893"}],"prev":{"headline":"Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service","id":"CVE-2019-9516"},"products":["n/a"],"published":"2019-08-13","related":[{"cvss_score":9.8,"headline":"Apache HTTP Server Path Traversal","id":"CVE-2021-42013","kev_date_added":"2021-11-03","published":"2021-10-07"},{"cvss_score":9.1,"headline":"Apache HTTP Server Improper Escaping of Output","id":"CVE-2024-38475","kev_date_added":"2025-05-01","published":"2024-07-01"},{"cvss_score":9,"headline":"Apache HTTP Server-Side Request Forgery (SSRF)","id":"CVE-2021-40438","kev_date_added":"2021-12-01","published":"2021-09-16"},{"cvss_score":7.8,"headline":"Apache HTTP Server Privilege Escalation","id":"CVE-2019-0211","kev_date_added":"2021-11-03","published":"2019-04-08"},{"cvss_score":7.5,"headline":"Apache HTTP Server Path Traversal","id":"CVE-2021-41773","kev_date_added":"2021-11-03","published":"2021-10-05"},{"cvss_score":10,"headline":"Use after free in n/a","id":"CVE-2010-0425","kev_date_added":null,"published":"2010-03-05"},{"cvss_score":10,"headline":"Auth bypass in n/a","id":"CVE-2005-2700","kev_date_added":null,"published":"2005-09-06"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"Attackers can cause denial of service in HTTP/2 servers by exploiting unconstrained internal data buffering via manipulated TCP and HTTP/2 windows.","url":"https://insights.sbomify.com/CVE-2019-9517/"}