{"api_version":"1","generated_at":"2026-04-23T04:09:01+00:00","cve":"CVE-2019-9748","urls":{"html":"https://cve.report/CVE-2019-9748","api":"https://cve.report/api/cve/CVE-2019-9748.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2019-9748","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-9748"},"summary":{"title":"CVE-2019-9748","description":"In tinysvcmdns through 2018-01-16, an mDNS server processing a crafted packet can perform arbitrary data read operations up to 16383 bytes from the start of the buffer. This can lead to a segmentation fault in uncompress_nlabel in mdns.c and a crash of the server (depending on the memory protection of the CPU and the operating system), or disclosure of memory content via error messages or a server response. NOTE: the product's web site states \"This project is un-maintained, and has been since 2013. ... There are known vulnerabilities ... You are advised to NOT use this library for any new projects / products.\"","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2019-03-13 19:29:00","updated_at":"2019-03-15 13:40:00"},"problem_types":["CWE-125"],"metrics":[],"references":[{"url":"https://bitbucket.org/geekman/tinysvcmdns/issues/10/arbitrary-memory-read-while-parsing","name":"https://bitbucket.org/geekman/tinysvcmdns/issues/10/arbitrary-memory-read-while-parsing","refsource":"MISC","tags":["Exploit","Third Party Advisory"],"title":"404 — Bitbucket","mime":"text/html","httpstatus":"404","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-9748","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-9748","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2019","cve_id":"9748","vulnerable":"1","versionEndIncluding":"2018-01-16","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"tinysvcmdns_project","cpe5":"tinysvcmdns","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2019-9748","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"In tinysvcmdns through 2018-01-16, an mDNS server processing a crafted packet can perform arbitrary data read operations up to 16383 bytes from the start of the buffer. This can lead to a segmentation fault in uncompress_nlabel in mdns.c and a crash of the server (depending on the memory protection of the CPU and the operating system), or disclosure of memory content via error messages or a server response. NOTE: the product's web site states \"This project is un-maintained, and has been since 2013. ... There are known vulnerabilities ... You are advised to NOT use this library for any new projects / products.\""}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://bitbucket.org/geekman/tinysvcmdns/issues/10/arbitrary-memory-read-while-parsing","refsource":"MISC","url":"https://bitbucket.org/geekman/tinysvcmdns/issues/10/arbitrary-memory-read-while-parsing"}]}},"nvd":{"publishedDate":"2019-03-13 19:29:00","lastModifiedDate":"2019-03-15 13:40:00","problem_types":["CWE-125"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":9.1,"baseSeverity":"CRITICAL"},"exploitabilityScore":3.9,"impactScore":5.2},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:C/I:N/A:C","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"COMPLETE","integrityImpact":"NONE","availabilityImpact":"COMPLETE","baseScore":9.4},"severity":"HIGH","exploitabilityScore":10,"impactScore":9.2,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:tinysvcmdns_project:tinysvcmdns:*:*:*:*:*:*:*:*","versionEndIncluding":"2018-01-16","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2019","CveId":"9748","Ordinal":"147625","Title":"CVE-2019-9748","CVE":"CVE-2019-9748","Year":"2019"},"notes":[{"CveYear":"2019","CveId":"9748","Ordinal":"1","NoteData":"In tinysvcmdns through 2018-01-16, an mDNS server processing a crafted packet can perform arbitrary data read operations up to 16383 bytes from the start of the buffer. This can lead to a segmentation fault in uncompress_nlabel in mdns.c and a crash of the server (depending on the memory protection of the CPU and the operating system), or disclosure of memory content via error messages or a server response. NOTE: the product's web site states \"This project is un-maintained, and has been since 2013. ... There are known vulnerabilities ... You are advised to NOT use this library for any new projects / products.\"","Type":"Description","Title":null},{"CveYear":"2019","CveId":"9748","Ordinal":"2","NoteData":"2019-03-13","Type":"Other","Title":"Published"}]}}}