{"id":"CVE-2019-20918","details":"An issue was discovered in InspIRCd 3 before 3.1.0. The silence module contains a use after free vulnerability. This vulnerability can be used for remote crashing of an InspIRCd server by any user able to fully connect to a server.","modified":"2026-07-15T10:01:48.644766Z","published":"2020-09-11T05:15:12.543Z","references":[{"type":"ADVISORY","url":"https://docs.inspircd.org/security/2019-01/"},{"type":"FIX","url":"https://github.com/inspircd/inspircd/commit/7b47de3c194f239c5fea09a0e49696c9af017d51"},{"type":"FIX","url":"https://github.com/inspircd/inspircd/commit/bcd65de1ec4bb71591ae417fee649d7ecd37cd57"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/inspircd/inspircd","events":[{"introduced":"68e5d0a151d8b5ca6577a0053dcda95774bf323a"},{"fixed":"6e6007ef83e2b88b68e8cc5cc1591c1ca7ff96c7"},{"fixed":"7b47de3c194f239c5fea09a0e49696c9af017d51"},{"fixed":"bcd65de1ec4bb71591ae417fee649d7ecd37cd57"}],"database_specific":{"cpe":"cpe:2.3:a:inspircd:inspircd:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"3.0"},{"fixed":"3.1.0"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["v3.0.1","v3.0.0"],"database_specific":{"vanir_signatures_modified":"2026-07-15T10:01:48Z","vanir_signatures":[{"deprecated":false,"digest":{"line_hashes":["137281295551576114536106547822918544856","294144551638259249213576490600158680981","258980650919900689067586385960914644667","158212954580586726344151970505063627189"],"threshold":0.9},"id":"CVE-2019-20918-278ca253","signature_type":"Line","signature_version":"v1","source":"https://github.com/inspircd/inspircd/commit/7b47de3c194f239c5fea09a0e49696c9af017d51","target":{"file":"src/modules/m_silence.cpp"}}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-20918.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}