{"schemaVersion":3,"id":"USN-3877-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"libvncserver vulnerabilities\n\nIt was discovered that LibVNCServer incorrectly handled certain operations.\nA remote attacker able to connect to applications using LibVNCServer could\npossibly use this issue to obtain sensitive information, cause a denial of\nservice, or execute arbitrary code.","dates":{"published":"2019-01-31T19:09:23.000Z","modified":"2026-04-27T15:33:05.447Z","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":"libvncserver","name":"libvncserver","label":"libvncserver","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/libvncserver","purlType":"deb","versions":[{"text":"< 0.9.9+dfsg-1ubuntu1.4","noFixRecorded":false,"fixedIn":null},{"text":"< 0.9.10+dfsg-3ubuntu0.16.04.3","noFixRecorded":false,"fixedIn":null},{"text":"< 0.9.11+dfsg-1ubuntu1.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.9.9+dfsg-1ubuntu1.4 | < 0.9.10+dfsg-3ubuntu0.16.04.3 | < 0.9.11+dfsg-1ubuntu1.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-3877-1","label":"ubuntu.com/security/notices/USN-3877-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2018-6307","label":"ubuntu.com/security/CVE-2018-6307","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-15126","label":"ubuntu.com/security/CVE-2018-15126","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-15127","label":"ubuntu.com/security/CVE-2018-15127","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-20019","label":"ubuntu.com/security/CVE-2018-20019","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-20020","label":"ubuntu.com/security/CVE-2018-20020","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-20021","label":"ubuntu.com/security/CVE-2018-20021","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-20022","label":"ubuntu.com/security/CVE-2018-20022","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-20023","label":"ubuntu.com/security/CVE-2018-20023","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-20024","label":"ubuntu.com/security/CVE-2018-20024","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-20748","label":"ubuntu.com/security/CVE-2018-20748","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-20749","label":"ubuntu.com/security/CVE-2018-20749","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2018-20750","label":"ubuntu.com/security/CVE-2018-20750","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2018-15126","CVE-2018-15127","CVE-2018-20019","CVE-2018-20020","CVE-2018-20021","CVE-2018-20022","CVE-2018-20023","CVE-2018-20024","CVE-2018-20748","CVE-2018-20749","CVE-2018-20750","CVE-2018-6307"],"downstream":[],"duplicates":[],"related":["CVE-2018-15126","CVE-2018-15127","CVE-2018-20019","CVE-2018-20020","CVE-2018-20021","CVE-2018-20022","CVE-2018-20023","CVE-2018-20024","CVE-2018-20748","CVE-2018-20749","CVE-2018-20750","CVE-2018-6307"]},"timeline":[{"kind":"published","date":"2019-01-31T19:09:23.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-27T15:33:05.447Z","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":"2026-10-19T04:41:20.454Z","stale":false,"partial":false}}