{"schemaVersion":3,"id":"USN-3456-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"xorg-server, xorg-server-hwe-16.04, xorg-server-lts-xenial vulnerabilities\n\nIt was discovered that the X.Org X server incorrectly handled certain\nlengths. An attacker able to connect to an X server, either locally or\nremotely, could use these issues to crash the server, or possibly execute\narbitrary code.","dates":{"published":"2017-10-17T16:33:35.000Z","modified":"2026-04-22T09:40:15.865Z","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":"xorg-server","name":"xorg-server","label":"xorg-server","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/xorg-server","purlType":"deb","versions":[{"text":"< 2:1.15.1-0ubuntu2.11","noFixRecorded":false,"fixedIn":null},{"text":"< 2:1.18.4-0ubuntu0.7","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2:1.15.1-0ubuntu2.11 | < 2:1.18.4-0ubuntu0.7","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"xorg-server-hwe-16.04","name":"xorg-server-hwe-16.04","label":"xorg-server-hwe-16.04","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/xorg-server-hwe-16.04","purlType":"deb","versions":[{"text":"< 2:1.19.3-1ubuntu1~16.04.4","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2:1.19.3-1ubuntu1~16.04.4","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"xorg-server-lts-xenial","name":"xorg-server-lts-xenial","label":"xorg-server-lts-xenial","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/xorg-server-lts-xenial","purlType":"deb","versions":[{"text":"< 2:1.18.3-1ubuntu2.3~trusty4","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 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first disclosed.","source":null},{"kind":"modified","date":"2026-04-22T09:40:15.865Z","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":"2026-10-21T04:30:05.414Z","stale":false,"partial":false}}