{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-5739 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2018-5739 yet. Limit exposure of the affected software until one is available.","what":"CVE-2018-5739 is a medium-severity denial of service vulnerability in ISC Kea DHCP, published on 16 Jan 2019. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-5739 and fix it if it is affected.\n\nWhat it is: CVE-2018-5739 is a medium-severity denial of service vulnerability in ISC Kea DHCP, published on 16 Jan 2019. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2018-5739 in the wild and no public exploit code.\n\nAffected product: ISC Kea DHCP. 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-2018-5739/ (Markdown: https://insights.sbomify.com/CVE-2018-5739/index.md)","id":"CVE-2018-5739","markdown":"https://insights.sbomify.com/CVE-2018-5739/index.md","name":"CVE-2018-5739","record":{"aliases":["GHSA-h3j8-24jg-q44j"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Kea DHCP server","requires_auth":"none","summary":"A memory leak in Kea DHCP server hooks can exhaust system resources, causing the server process to fail and resulting in a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"isc","cpe":[{"product":"kea","vendor":"isc"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-772","name":"Missing Release of Resource after Effective Lifetime"}],"description":"An extension to hooks capabilities which debuted in Kea 1.4.0 introduced a memory leak for operators who are using certain hooks library facilities. In order to support multiple requests simultaneously, Kea 1.4 added a callout handle store but unfortunately the initial implementation of this store does not properly free memory in every case. Hooks which make use of query4 or query6 parameters in their callouts can leak memory, resulting in the eventual exhaustion of available memory and subsequent failure of the server process. Affects Kea DHCP 1.4.0.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Failure to release memory may exhaust system resources","id":"CVE-2018-5739","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2018"},"n_packages":0,"n_references":1,"next":{"headline":"A flaw in the \"deny-answer-aliases\" feature can cause an assertion failure in named","id":"CVE-2018-5740"},"packages":[],"prev":{"headline":"Some versions of BIND can improperly permit recursive query service to unauthorized clients","id":"CVE-2018-5738"},"products":["Kea DHCP"],"published":"2019-01-16","related":[{"cvss_score":6.8,"headline":"Denial of service in n/a","id":"CVE-2015-8373","kev_date_added":null,"published":"2015-12-22"},{"cvss_score":6.5,"headline":"A packet containing a malformed DUID can cause the kea-dhcp6 server to terminate","id":"CVE-2019-6472","kev_date_added":null,"published":"2019-10-16"},{"cvss_score":5.7,"headline":"A packet containing a malformed DUID can cause the kea-dhcp6 server to terminate","id":"CVE-2019-6474","kev_date_added":null,"published":"2019-10-16"}],"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":"2024-09-17","vendors":["ISC"]},"summary":"A memory leak in Kea DHCP server hooks can exhaust system resources, causing the server process to fail and resulting in a denial of service.","url":"https://insights.sbomify.com/CVE-2018-5739/"}