{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-8956 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2018-8956 is a medium-severity denial of service vulnerability in Ntp Ntp, published on 6 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-8956 and fix it if it is affected.\n\nWhat it is: CVE-2018-8956 is a medium-severity denial of service vulnerability in Ntp Ntp, published on 6 May 2020. 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-2018-8956 in the wild and no public exploit code.\n\nAffected product: Ntp Ntp. 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-2018-8956/ (Markdown: https://insights.sbomify.com/CVE-2018-8956/index.md)","id":"CVE-2018-8956","markdown":"https://insights.sbomify.com/CVE-2018-8956/index.md","name":"CVE-2018-8956","record":{"aliases":["DEBIAN-CVE-2018-8956","GHSA-gg7p-jc5w-p68m","UBUNTU-CVE-2018-8956"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"NTP daemon","requires_auth":"none","summary":"Remote attackers can prevent NTP clients from synchronizing clocks by spoofing packets, requiring access to the broadcast network or a compromised slave.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"ntp","vendor":"ntp"}],"cvss":{"score":5.3,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"ntpd in ntp 4.2.8p10, 4.2.8p11, 4.2.8p12 and 4.2.8p13 allow remote attackers to prevent a broadcast client from synchronizing its clock with a broadcast NTP server via soofed mode 3 and mode 5 packets. The attacker must either be a part of the same broadcast network or control a slave in that broadcast network that can capture certain required packets on the attacker's behalf and send them to the attacker.","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-2018-8956","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"ntp:ntp","products":["ntp:ntp"],"type":"denial_of_service","year":"2018"},"n_packages":0,"n_references":7,"next":{"headline":"Cross-site scripting in n/a","id":"CVE-2018-8957"},"packages":[],"prev":{"headline":"Code injection in n/a","id":"CVE-2018-8955"},"products":["n/a"],"published":"2020-05-06","related":[{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2018-12327","kev_date_added":null,"published":"2018-06-20"},{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2017-6460","kev_date_added":null,"published":"2017-03-27"},{"cvss_score":8.1,"headline":"Other in n/a","id":"CVE-2019-11331","kev_date_added":null,"published":"2019-04-18"},{"cvss_score":7.8,"headline":"Memory corruption in n/a","id":"CVE-2017-6451","kev_date_added":null,"published":"2017-03-27"},{"cvss_score":7.8,"headline":"Memory corruption in n/a","id":"CVE-2017-6452","kev_date_added":null,"published":"2017-03-27"},{"cvss_score":7.8,"headline":"Memory corruption in n/a","id":"CVE-2017-6462","kev_date_added":null,"published":"2017-03-27"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2015-7978","kev_date_added":null,"published":"2017-01-30"}],"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":"2024-08-05","vendors":["n/a"]},"summary":"Remote attackers can prevent NTP clients from synchronizing clocks by spoofing packets, requiring access to the broadcast network or a compromised slave.","url":"https://insights.sbomify.com/CVE-2018-8956/"}