{"answers":{"affected":"It affects 19 products.","exploited":"There is no known exploitation of CVE-2019-9516 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2019-9516 is a high-severity denial of service vulnerability in Apache Traffic 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-2019-9516 and fix it if it is affected.\n\nWhat it is: CVE-2019-9516 is a high-severity denial of service vulnerability in Apache Traffic 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-2019-9516 in the wild and no public exploit code.\n\nAffected product: Apache Traffic 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-2019-9516/ (Markdown: https://insights.sbomify.com/CVE-2019-9516/index.md)","id":"CVE-2019-9516","markdown":"https://insights.sbomify.com/CVE-2019-9516/index.md","name":"CVE-2019-9516","record":{"aliases":["ALPINE-CVE-2019-9516","CLEANSTART-2026-HE94703","CLEANSTART-2026-UM64475","DEBIAN-CVE-2019-9516","GHSA-6gw7-c226-vg73","UBUNTU-CVE-2019-9516"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"HTTP/2 implementation","requires_auth":"none","summary":"Attackers can cause denial of service by sending HTTP/2 headers with zero-length names and values, exhausting server memory.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"certcc","cpe":[{"product":"traffic_server","vendor":"apache"},{"product":"swiftnio","vendor":"apple"},{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"nginx","vendor":"f5"},{"product":"fedora","vendor":"fedoraproject"},{"product":"web_gateway","vendor":"mcafee"},{"product":"node.js","vendor":"nodejs"},{"product":"leap","vendor":"opensuse"},{"product":"graalvm","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 a header leak, potentially leading to a denial of service. The attacker sends a stream of headers with a 0-length header name and 0-length header value, optionally Huffman encoded into 1-byte or greater headers. Some implementations allocate memory for these headers and keep the allocation alive until the session dies. This can consume excess memory.","ecosystems":[],"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":"Some HTTP/2 implementations are vulnerable to a header leak, potentially leading to a denial of service","id":"CVE-2019-9516","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"apache:traffic_server","products":["apache:traffic_server","canonical:ubuntu_linux","debian:debian_linux","fedoraproject:fedora","nodejs:node.js","opensuse:leap","oracle:graalvm","redhat:enterprise_linux","redhat:jboss_enterprise_application_platform","redhat:software_collections","synology:diskstation_manager"],"type":"denial_of_service","year":"2019"},"n_packages":0,"n_references":37,"next":{"headline":"Denial of service in n/a","id":"CVE-2019-9517"},"packages":[],"prev":{"headline":"Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service","id":"CVE-2019-9515"},"products":["n/a"],"published":"2019-08-13","related":[{"cvss_score":10,"headline":"Other in n/a","id":"CVE-2014-3525","kev_date_added":null,"published":"2014-08-22"},{"cvss_score":9.8,"headline":"heap-buffer-overflow with stats-over-http plugin","id":"CVE-2021-43082","kev_date_added":null,"published":"2021-11-03"},{"cvss_score":9.8,"headline":"Dynamic stack buffer overflow in cachekey plugin","id":"CVE-2021-35474","kev_date_added":null,"published":"2021-06-30"},{"cvss_score":9.8,"headline":"Other in Apache Traffic Server","id":"CVE-2019-17559","kev_date_added":null,"published":"2020-03-23"},{"cvss_score":9.8,"headline":"Other in Apache Traffic Server","id":"CVE-2019-17565","kev_date_added":null,"published":"2020-03-23"},{"cvss_score":9.8,"headline":"Other in Apache Traffic Server","id":"CVE-2020-1944","kev_date_added":null,"published":"2020-03-23"},{"cvss_score":9.8,"headline":"Security feature bypass in n/a","id":"CVE-2014-3624","kev_date_added":null,"published":"2017-10-30"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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 by sending HTTP/2 headers with zero-length names and values, exhausting server memory.","url":"https://insights.sbomify.com/CVE-2019-9516/"}