{"id":"CVE-2018-17019","details":"In Bro through 2.5.5, there is a DoS in IRC protocol names command parsing in analyzer/protocol/irc/IRC.cc.","modified":"2026-07-08T14:14:52.072811Z","published":"2018-09-13T19:29:00.557Z","references":[{"type":"FIX","url":"https://github.com/bro/bro/commit/c2b18849f8bb833253538f5dfedb4ed1dc176a30"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/bro/bro","events":[{"introduced":"0"},{"last_affected":"697aff2c0d569a8db1ca6b990a10838665a002c8"},{"fixed":"c2b18849f8bb833253538f5dfedb4ed1dc176a30"}],"database_specific":{"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:bro:bro:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"2.5.5"}]}}],"versions":["v2.5.5","v2.5.4","v2.5.3","v2.5.2","v2.5.1","v2.5.1-beta","v2.5","v2.5-beta2","v2.5-beta","v2.4","v2.4-beta","v2.3","v2.3-beta","v2.2","v2.2-beta","v2.1","v1.1","v2.1-beta","v2.0","v2.0-beta","v2.0-beta-pre","v1.6-dev"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-17019.json","vanir_signatures_modified":"2026-07-08T14:14:52Z","vanir_signatures":[{"target":{"file":"src/analyzer/protocol/irc/IRC.cc"},"deprecated":false,"digest":{"line_hashes":["77868270333029608526007377023723104342","197616294696713652245393448113651582737","269458979685331922072839064529115824301","215176171713393582881742058038719741646","315085053996922377014046409675575957011","262883685267438665287262714275062867303","156884935239857457729986971900351574092","262207262755734626492622585168230902345","110923245719106072015242546838362036685"],"threshold":0.9},"id":"CVE-2018-17019-6fd2cebe","signature_type":"Line","signature_version":"v1","source":"https://github.com/bro/bro/commit/c2b18849f8bb833253538f5dfedb4ed1dc176a30"},{"signature_version":"v1","source":"https://github.com/bro/bro/commit/c2b18849f8bb833253538f5dfedb4ed1dc176a30","target":{"file":"src/analyzer/protocol/irc/IRC.cc","function":"IRC_Analyzer::DeliverStream"},"deprecated":false,"digest":{"function_hash":"129660041364571452923689316779621065090","length":24683},"id":"CVE-2018-17019-71a0b4e7","signature_type":"Function"}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}