{"schemaVersion":3,"id":"USN-3786-2","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"libxkbcommon vulnerabilities\n\nUSN-3786-1 fixed several vulnerabilities in libxkbcommon. This\nupdate provides the corresponding update for Ubuntu 18.04 LTS.\n\nOriginal advisory details:\n\n It was discovered that libxkbcommon incorrectly handled certain files.\n An attacker could possibly use this issue to cause a denial of service.\n (CVE-2018-15853, CVE-2018-15854, CVE-2018-15855, CVE-2018-15856,\n CVE-2018-15857, CVE-2018-15858, CVE-2018-15859, CVE-2018-15861,\n CVE-2018-15862, CVE-2018-15863, CVE-2018-15864)","dates":{"published":"2018-11-06T14:53:08.000Z","modified":"2026-04-22T09:51:16.779Z","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":"libxkbcommon","name":"libxkbcommon","label":"libxkbcommon","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/libxkbcommon","purlType":"deb","versions":[{"text":"< 0.8.0-1ubuntu0.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.8.0-1ubuntu0.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-3786-2","label":"ubuntu.com/security/notices/USN-3786-2","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-15853","label":"ubuntu.com/security/CVE-2018-15853","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-15854","label":"ubuntu.com/security/CVE-2018-15854","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-15855","label":"ubuntu.com/security/CVE-2018-15855","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-15856","label":"ubuntu.com/security/CVE-2018-15856","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-15857","label":"ubuntu.com/security/CVE-2018-15857","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-15858","label":"ubuntu.com/security/CVE-2018-15858","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-15859","label":"ubuntu.com/security/CVE-2018-15859","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-15861","label":"ubuntu.com/security/CVE-2018-15861","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-15862","label":"ubuntu.com/security/CVE-2018-15862","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-15863","label":"ubuntu.com/security/CVE-2018-15863","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-15864","label":"ubuntu.com/security/CVE-2018-15864","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2018-15853","CVE-2018-15854","CVE-2018-15855","CVE-2018-15856","CVE-2018-15857","CVE-2018-15858","CVE-2018-15859","CVE-2018-15861","CVE-2018-15862","CVE-2018-15863","CVE-2018-15864"],"downstream":[],"duplicates":[],"related":["CVE-2018-15853","CVE-2018-15854","CVE-2018-15855","CVE-2018-15856","CVE-2018-15857","CVE-2018-15858","CVE-2018-15859","CVE-2018-15861","CVE-2018-15862","CVE-2018-15863","CVE-2018-15864"]},"timeline":[{"kind":"published","date":"2018-11-06T14:53:08.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-22T09:51:16.779Z","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":"2026-10-20T05:46:16.170Z","stale":false,"partial":false}}