{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2018-18898 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2018-18898 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 17 Mar 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-2018-18898 and fix it if it is affected.\n\nWhat it is: CVE-2018-18898 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 17 Mar 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-2018-18898 in the wild and no public exploit code.\n\nAffected product: Canonical Ubuntu Linux. 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-2018-18898/ (Markdown: https://insights.sbomify.com/CVE-2018-18898/index.md)","id":"CVE-2018-18898","markdown":"https://insights.sbomify.com/CVE-2018-18898/index.md","name":"CVE-2018-18898","record":{"aliases":["ALPINE-CVE-2018-18898","DEBIAN-CVE-2018-18898","DLA-2101-1","GHSA-6rmj-6826-5j8h","UBUNTU-CVE-2018-18898","USN-4517-1"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Request Tracker","requires_auth":"none","summary":"Remote attackers can cause denial of service in Request Tracker via an algorithmic complexity attack on email address parsing.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"request_tracker","vendor":"bestpractical"},{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"}],"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-400","name":"Uncontrolled Resource Consumption"}],"description":"The email-ingestion feature in Best Practical Request Tracker 4.1.13 through 4.4 allows denial of service by remote attackers via an algorithmic complexity attack on email address parsing.","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":"Denial of service in n/a","id":"CVE-2018-18898","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","fedoraproject:fedora"],"type":"denial_of_service","year":"2018"},"n_packages":0,"n_references":5,"next":{"headline":"Code injection in n/a","id":"CVE-2018-18903"},"packages":[],"prev":{"headline":"Denial of service in n/a","id":"CVE-2018-18897"},"products":["n/a"],"published":"2019-03-17","related":[{"cvss_score":9.1,"headline":"RT: Privilege escalation and information disclosure via REST 2.0 user collection endpoint","id":"CVE-2026-44231","kev_date_added":null,"published":"2026-07-20"},{"cvss_score":8.8,"headline":"Information disclosure in n/a","id":"CVE-2017-5943","kev_date_added":null,"published":"2017-07-03"},{"cvss_score":8.8,"headline":"Code injection in n/a","id":"CVE-2017-5944","kev_date_added":null,"published":"2017-07-03"},{"cvss_score":7.5,"headline":"Information disclosure in n/a","id":"CVE-2023-41259","kev_date_added":null,"published":"2023-11-03"},{"cvss_score":7.5,"headline":"Information disclosure in n/a","id":"CVE-2023-41260","kev_date_added":null,"published":"2023-11-03"},{"cvss_score":7.5,"headline":"Information disclosure in n/a","id":"CVE-2023-45024","kev_date_added":null,"published":"2023-11-03"},{"cvss_score":7.5,"headline":"Information disclosure in n/a","id":"CVE-2021-38562","kev_date_added":null,"published":"2021-10-18"}],"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":"2024-08-05","vendors":["n/a"]},"summary":"Remote attackers can cause denial of service in Request Tracker via an algorithmic complexity attack on email address parsing.","url":"https://insights.sbomify.com/CVE-2018-18898/"}