{"schemaVersion":3,"id":"CVE-2019-9748","aliases":[],"status":"published","duplicateOf":null,"title":null,"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.\"","dates":{"published":"2019-03-13T19:00:00.000Z","modified":"2024-09-17T04:19:43.318Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.4,"severity":"high","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:N/AC:L/Au:N/C:C/I:N/A:C","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":9.1,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":9.4,"severity":"high","vector":"AV:N/AC:L/Au:N/C:C/I:N/A:C","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.02418,"percentile":0.83935,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.02418},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02202,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.02418,"percentile":0.83935}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02202,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.02418,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.02418,"percentile":0.83935}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"REF_9F6D0D1C61C8C800","name":"Exploit Reference (bitbucket.org)","source":"reference","url":"https://bitbucket.org/geekman/tinysvcmdns/issues/10/arbitrary-memory-read-while-parsing","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-125","name":"Out-of-bounds Read","description":"The product reads data past the end, or before the beginning, of the intended buffer.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/125.html"}],"affected":[{"vendor":"tinysvcmdns_project","product":"tinysvcmdns","name":"tinysvcmdns","label":"tinysvcmdns","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 2018-01-16","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 2018-01-16","eol":null,"hubHref":"/vendor/tinysvcmdns_project/tinysvcmdns"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://bitbucket.org/geekman/tinysvcmdns/issues/10/arbitrary-memory-read-while-parsing","label":"bitbucket.org/geekman/tinysvcmdns/issues/10/arbitrary-memory-read-while-parsing","hostname":"bitbucket.org","tags":["X Refsource MISC","Exploit","Third Party Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2019-03-13T19:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-09-17T04:19:43.318Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T13:31:57.853Z","stale":false,"partial":false}}