{"answers":{"affected":"It affects 10 products.","exploited":"There is no known exploitation of CVE-2016-4955 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2016-4955 is a medium-severity vulnerability in Ntp Ntp, published on 5 Jul 2016. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2016-4955 and fix it if it is affected.\n\nWhat it is: CVE-2016-4955 is a medium-severity vulnerability in Ntp Ntp, published on 5 Jul 2016. 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-2016-4955 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-2016-4955/ (Markdown: https://insights.sbomify.com/CVE-2016-4955/index.md)","id":"CVE-2016-4955","markdown":"https://insights.sbomify.com/CVE-2016-4955/index.md","name":"CVE-2016-4955","record":{"aliases":["DEBIAN-CVE-2016-4955","GHSA-c9r5-4837-463p","UBUNTU-CVE-2016-4955"],"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 cause denial of service in NTP daemon by sending spoofed packets when autokey is enabled.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"suse_manager","vendor":"novell"},{"product":"ntp","vendor":"ntp"},{"product":"leap","vendor":"opensuse"},{"product":"opensuse","vendor":"opensuse"},{"product":"solaris","vendor":"oracle"},{"product":"simatic_net_cp_443-1_opc_ua_firmware","vendor":"siemens"},{"product":"linux_enterprise_desktop","vendor":"suse"},{"product":"linux_enterprise_server","vendor":"suse"},{"product":"manager_proxy","vendor":"suse"},{"product":"openstack_cloud","vendor":"suse"}],"cvss":{"score":5.9,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"}],"description":"ntpd in NTP 4.x before 4.2.8p8, when autokey is enabled, allows remote attackers to cause a denial of service (peer-variable clearing and association outage) by sending (1) a spoofed crypto-NAK packet or (2) a packet with an incorrect MAC value at a certain time.","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":"Race condition in n/a","id":"CVE-2016-4955","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"ntp:ntp","products":["ntp:ntp","opensuse:leap","opensuse:opensuse","oracle:solaris","suse:linux_enterprise_desktop","suse:linux_enterprise_server"],"type":"race_condition","year":"2016"},"n_packages":0,"n_references":31,"next":{"headline":"Denial of service in n/a","id":"CVE-2016-4956"},"packages":[],"prev":{"headline":"Race condition in n/a","id":"CVE-2016-4954"},"products":["n/a"],"published":"2016-07-05","related":[{"cvss_score":7.5,"headline":"Null dereference in n/a","id":"CVE-2016-4957","kev_date_added":null,"published":"2016-07-05"},{"cvss_score":5.3,"headline":"Denial of service in n/a","id":"CVE-2016-4956","kev_date_added":null,"published":"2016-07-05"},{"cvss_score":4.3,"headline":"Cross-site scripting in n/a","id":"CVE-2012-0414","kev_date_added":null,"published":"2013-12-02"}],"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":"2024-08-06","vendors":["n/a"]},"summary":"Remote attackers can cause denial of service in NTP daemon by sending spoofed packets when autokey is enabled.","url":"https://insights.sbomify.com/CVE-2016-4955/"}