{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-16853 in the wild and no public exploit code.","fix":"Change a configuration setting.","what":"CVE-2018-16853 is a high-severity denial of service vulnerability in Samba Samba, published on 28 Nov 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-16853 and fix it if it is affected.\n\nWhat it is: CVE-2018-16853 is a high-severity denial of service vulnerability in Samba Samba, published on 28 Nov 2018. 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-2018-16853 in the wild and no public exploit code.\n\nAffected product: Samba Samba. 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-2018-16853/ (Markdown: https://insights.sbomify.com/CVE-2018-16853/index.md)","id":"CVE-2018-16853","markdown":"https://insights.sbomify.com/CVE-2018-16853/index.md","name":"CVE-2018-16853","record":{"aliases":["ALPINE-CVE-2018-16853","DEBIAN-CVE-2018-16853","ECHO-ad76-9b08-2235","GHSA-wggh-6fmq-953v"],"analysis":{"component_type":"server_software","fix_type":"configuration_change","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Samba AD DC","requires_auth":"none","summary":"A user in a Samba AD domain can crash the KDC when using the experimental MIT Kerberos build, requiring configuration changes to mitigate.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"samba","vendor":"samba"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"Samba from version 4.7.0 has a vulnerability that allows a user in a Samba AD domain to crash the KDC when Samba is built in the non-default MIT Kerberos configuration. With this advisory the Samba Team clarify that the MIT Kerberos build of the Samba AD DC is considered experimental. Therefore the Samba Team will not issue security patches for this configuration. Additionally, Samba 4.7.12, 4.8.7 and 4.9.3 have been issued as security releases to prevent building of the AD DC with MIT Kerberos unless --with-experimental-mit-ad-dc is specified to the configure command.","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 samba","id":"CVE-2018-16853","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"samba:samba","products":["samba:samba"],"type":"denial_of_service","year":"2018"},"n_packages":0,"n_references":5,"next":{"headline":"Moodle Login CSRF vulnerability in login form","id":"CVE-2018-16854"},"packages":[],"prev":{"headline":"Null dereference in samba","id":"CVE-2018-16852"},"products":["samba"],"published":"2018-11-28","related":[{"cvss_score":10,"headline":"Integer overflow in n/a","id":"CVE-2012-1182","kev_date_added":null,"published":"2012-04-10"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2007-2446","kev_date_added":null,"published":"2007-05-14"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2004-0600","kev_date_added":null,"published":"2004-07-23"},{"cvss_score":10,"headline":"Denial of service in n/a","id":"CVE-1999-0810","kev_date_added":null,"published":"2000-01-04"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-1999-0182","kev_date_added":null,"published":"1999-09-29"},{"cvss_score":9.8,"headline":"Weak cryptography in Samba","id":"CVE-2022-45141","kev_date_added":null,"published":"2023-03-06"},{"cvss_score":9.3,"headline":"Other in n/a","id":"CVE-2009-1886","kev_date_added":null,"published":"2009-06-24"}],"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":["[UNKNOWN]"]},"summary":"A user in a Samba AD domain can crash the KDC when using the experimental MIT Kerberos build, requiring configuration changes to mitigate.","url":"https://insights.sbomify.com/CVE-2018-16853/"}