{"schemaVersion":3,"id":"USN-2365-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"libvncserver vulnerabilities\n\nNicolas Ruff discovered that LibVNCServer incorrectly handled memory when\nbeing advertised large screen sizes by the server. If a user were tricked\ninto connecting to a malicious server, an attacker could use this issue to\ncause a denial of service, or possibly execute arbitrary code.\n(CVE-2014-6051, CVE-2014-6052)\n\nNicolas Ruff discovered that LibVNCServer incorrectly handled large\nClientCutText messages. A remote attacker could use this issue to cause a\nserver to crash, resulting in a denial of service. (CVE-2014-6053)\n\nNicolas Ruff discovered that LibVNCServer incorrectly handled zero scaling\nfactor values. A remote attacker could use this issue to cause a server to\ncrash, resulting in a denial of service. (CVE-2014-6054)\n\nNicolas Ruff discovered that LibVNCServer incorrectly handled memory in the\nfile transfer feature. A remote attacker could use this issue to cause a\nserver to crash, resulting in a denial of service, or possibly execute\narbitrary code. (CVE-2014-6055)","dates":{"published":"2014-09-29T17:12:11.000Z","modified":"2026-04-27T15:17:30.842Z","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-1ubuntu1.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.9.9+dfsg-1ubuntu1.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-2365-1","label":"ubuntu.com/security/notices/USN-2365-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2014-6051","label":"ubuntu.com/security/CVE-2014-6051","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2014-6052","label":"ubuntu.com/security/CVE-2014-6052","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2014-6053","label":"ubuntu.com/security/CVE-2014-6053","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2014-6054","label":"ubuntu.com/security/CVE-2014-6054","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2014-6055","label":"ubuntu.com/security/CVE-2014-6055","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2014-6051","CVE-2014-6052","CVE-2014-6053","CVE-2014-6054","CVE-2014-6055"],"downstream":[],"duplicates":[],"related":["CVE-2014-6051","CVE-2014-6052","CVE-2014-6053","CVE-2014-6054","CVE-2014-6055"]},"timeline":[{"kind":"published","date":"2014-09-29T17:12:11.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-27T15:17:30.842Z","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":"2026-10-20T13:57:07.438Z","stale":false,"partial":false}}