{"answers":{"affected":"2 open source packages ship an affected version, including istio.io/istio. It affects 1 product.","exploited":"There is no known exploitation of CVE-2019-18817 in the wild and no public exploit code.","fix":"Upgrade istio.io/istio to 1.3.5 or later.","what":"CVE-2019-18817 is a high-severity denial of service vulnerability in n/a, published on 12 Nov 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-2019-18817 and fix it if it is affected.\n\nWhat it is: CVE-2019-18817 is a high-severity denial of service vulnerability in n/a, published on 12 Nov 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-2019-18817 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- istio.io/istio (Go): affected from 1.3.0; fixed in 1.3.5\n- istio.io/istio (Go): affected from 1.3.0; fixed in 1.3.5\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-2019-18817/ (Markdown: https://insights.sbomify.com/CVE-2019-18817/index.md)","id":"CVE-2019-18817","markdown":"https://insights.sbomify.com/CVE-2019-18817/index.md","name":"CVE-2019-18817","record":{"aliases":["GHSA-vc7h-cmp3-4hw5"],"analysis":{"component_type":"cloud_service","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Istio service mesh","requires_auth":"none","summary":"Attackers can cause a denial of service in Istio due to a timeout configuration issue in listener filters.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"istio","vendor":"istio"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"}],"description":"Istio 1.3.x before 1.3.5 allows Denial of Service because continue_on_listener_filters_timeout is set to True, a related issue to CVE-2019-18836.","ecosystems":["Go"],"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":"Istio vulnerable to denial of service","id":"CVE-2019-18817","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2019"},"n_packages":2,"n_references":2,"next":{"headline":"Strapi allows unauthenticated attacker to reset admin password without valid reset token","id":"CVE-2019-18818"},"packages":[{"ecosystem":"Go","fixed":["1.3.5"],"introduced":["1.3.0"],"last_affected":[],"package":"istio.io/istio","purl":null,"source":"GHSA-vc7h-cmp3-4hw5"},{"ecosystem":"Go","fixed":["1.3.5"],"introduced":["1.3.0"],"last_affected":[],"package":"istio.io/istio","purl":"pkg:golang/istio.io/istio","source":"GHSA-vc7h-cmp3-4hw5"}],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2019-18816"},"products":["n/a"],"published":"2019-11-12","related":[{"cvss_score":9.8,"headline":"Missing authorization in n/a","id":"CVE-2021-31921","kev_date_added":null,"published":"2021-06-02"},{"cvss_score":8.8,"headline":"Information disclosure in n/a","id":"CVE-2021-34824","kev_date_added":null,"published":"2021-06-29"},{"cvss_score":8.7,"headline":"Istio JWKS resolver to prevent private key material from being exposed when JWKS fetch fails.","id":"CVE-2026-31837","kev_date_added":null,"published":"2026-03-10"},{"cvss_score":8.3,"headline":"Authorization Policy Bypass Due to Case Insensitive Host Comparison","id":"CVE-2021-39155","kev_date_added":null,"published":"2021-08-24"},{"cvss_score":8.1,"headline":"Fragments in Path May Lead to Authorization Policy Bypass","id":"CVE-2021-39156","kev_date_added":null,"published":"2021-08-24"},{"cvss_score":7.6,"headline":"Istio may allow identity impersonation if user has localhost access","id":"CVE-2022-39388","kev_date_added":null,"published":"2022-11-10"},{"cvss_score":7.5,"headline":"Istio vulnerable to denial of service attack due to Golang Regex Library","id":"CVE-2022-39278","kev_date_added":null,"published":"2022-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"2024-08-05","vendors":["n/a"]},"summary":"Attackers can cause a denial of service in Istio due to a timeout configuration issue in listener filters.","url":"https://insights.sbomify.com/CVE-2019-18817/"}