{"schemaVersion":3,"id":"USN-5258-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"weechat vulnerabilities\n\nStuart Nevans Locke discovered that WeeChat's relay plugin insecurely handled\nmalformed websocket frames. A remote attacker in control of a server\ncould possibly use this issue to cause denial of service in a client.\n(CVE-2021-40516)\n\nStuart Nevans Locke discovered that WeeChat insecurely handled certain\nIRC messages. A remote attacker in control of a server could possibly use\nthis issue to cause denial of service in a client. This issue only affected\nUbuntu 16.04 ESM and Ubuntu 18.04 ESM. (CVE-2020-9760)\n\nStuart Nevans Locke discovered that WeeChat insecurely handled certain\nIRC messages. A remote unauthenticated attacker could possibly use these\nissues to cause denial of service in a client. These issues only affected\nUbuntu 16.04 ESM and Ubuntu 18.04 ESM. (CVE-2020-9759, CVE-2020-8955)\n\nJoseph Bisch discovered that WeeChat's logger incorrectly handled certain\nmemory operations when handling log file names. A remote attacker could possibly\nuse this issue to cause denial of service in a client. This issue only\naffected Ubuntu 16.04 ESM. (CVE-2017-14727)","dates":{"published":"2022-02-04T16:38:24.000Z","modified":"2026-06-25T13:31:00.165Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"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":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"ubuntu","product":"weechat","name":"weechat","label":"weechat","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/weechat","purlType":"deb","versions":[{"text":"< 1.4-2ubuntu0.1+esm1","noFixRecorded":false,"fixedIn":null},{"text":"< 1.9.1-1ubuntu1+esm1","noFixRecorded":false,"fixedIn":null},{"text":"< 2.8-1ubuntu0.1~esm1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.4-2ubuntu0.1+esm1 | < 1.9.1-1ubuntu1+esm1 | < 2.8-1ubuntu0.1~esm1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-5258-1","label":"ubuntu.com/security/notices/USN-5258-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2017-14727","label":"ubuntu.com/security/CVE-2017-14727","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-8955","label":"ubuntu.com/security/CVE-2020-8955","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-9759","label":"ubuntu.com/security/CVE-2020-9759","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-9760","label":"ubuntu.com/security/CVE-2020-9760","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-40516","label":"ubuntu.com/security/CVE-2021-40516","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2017-14727","CVE-2020-8955","CVE-2020-9759","CVE-2020-9760","CVE-2021-40516"],"downstream":[],"duplicates":[],"related":["CVE-2017-14727","CVE-2020-8955","CVE-2020-9759","CVE-2020-9760","CVE-2021-40516"]},"timeline":[{"kind":"published","date":"2022-02-04T16:38:24.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-25T13:31:00.165Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T22:02:57.753Z","stale":false,"partial":false}}