{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-16852 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2018-16852 is a medium-severity vulnerability in Samba Samba, published on 28 Nov 2018. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-16852 and fix it if it is affected.\n\nWhat it is: CVE-2018-16852 is a medium-severity vulnerability in Samba Samba, published on 28 Nov 2018. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2018-16852 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-2018-16852/ (Markdown: https://insights.sbomify.com/CVE-2018-16852/index.md)","id":"CVE-2018-16852","markdown":"https://insights.sbomify.com/CVE-2018-16852/index.md","name":"CVE-2018-16852","record":{"aliases":["DEBIAN-CVE-2018-16852","ECHO-1023-88ca-e2e1","GHSA-66rc-c89h-v5pc"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Samba DNS server","requires_auth":"low_privilege","summary":"A NULL pointer dereference in Samba's DNS server causes a denial of service when specific zone properties are configured.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"samba","vendor":"samba"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"Samba from version 4.9.0 and before version 4.9.3 is vulnerable to a NULL pointer de-reference. During the processing of an DNS zone in the DNS management DCE/RPC server, the internal DNS server or the Samba DLZ plugin for BIND9, if the DSPROPERTY_ZONE_MASTER_SERVERS property or DSPROPERTY_ZONE_SCAVENGING_SERVERS property is set, the server will follow a NULL pointer and terminate. There is no further vulnerability associated with this issue, merely a denial of service.","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":"Null dereference in samba","id":"CVE-2018-16852","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"samba:samba","products":["samba:samba"],"type":"null_dereference","year":"2018"},"n_packages":0,"n_references":5,"next":{"headline":"Denial of service in samba","id":"CVE-2018-16853"},"packages":[],"prev":{"headline":"Null dereference in samba","id":"CVE-2018-16851"},"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 NULL pointer dereference in Samba's DNS server causes a denial of service when specific zone properties are configured.","url":"https://insights.sbomify.com/CVE-2018-16852/"}