{"schemaVersion":3,"id":"USN-4557-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"tomcat6 vulnerabilities\n\nIt was discovered that the Tomcat realm implementations incorrectly handled\npasswords when a username didn't exist. A remote attacker could possibly\nuse this issue to enumerate usernames. (CVE-2016-0762)\n\nAlvaro Munoz and Alexander Mirosh discovered that Tomcat incorrectly\nlimited use of a certain utility method. A malicious application could\npossibly use this to bypass Security Manager restrictions. (CVE-2016-5018)\n\nIt was discovered that Tomcat incorrectly controlled reading system\nproperties. A malicious application could possibly use this to bypass\nSecurity Manager restrictions. (CVE-2016-6794)\n\nIt was discovered that Tomcat incorrectly controlled certain configuration\nparameters. A malicious application could possibly use this to bypass\nSecurity Manager restrictions. (CVE-2016-6796)\n\nIt was discovered that Tomcat incorrectly limited access to global JNDI\nresources. A malicious application could use this to access any global JNDI\nresource without an explicit ResourceLink. (CVE-2016-6797)\n\nRegis Leroy discovered that Tomcat incorrectly filtered certain invalid\ncharacters from the HTTP request line. A remote attacker could possibly\nuse this issue to inject data into HTTP responses. (CVE-2016-6816)\n\nPierre Ernst discovered that the Tomcat JmxRemoteLifecycleListener did not\nimplement a recommended fix. A remote attacker could possibly use this\nissue to execute arbitrary code. (CVE-2016-8735)","dates":{"published":"2020-09-30T12:55:19.000Z","modified":"2026-04-27T15:48:46.936Z","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":"tomcat6","name":"tomcat6","label":"tomcat6","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/tomcat6","purlType":"deb","versions":[{"text":"< 6.0.45+dfsg-1ubuntu0.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.0.45+dfsg-1ubuntu0.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-4557-1","label":"ubuntu.com/security/notices/USN-4557-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2016-0762","label":"ubuntu.com/security/CVE-2016-0762","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2016-5018","label":"ubuntu.com/security/CVE-2016-5018","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2016-6794","label":"ubuntu.com/security/CVE-2016-6794","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2016-6796","label":"ubuntu.com/security/CVE-2016-6796","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2016-6797","label":"ubuntu.com/security/CVE-2016-6797","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2016-6816","label":"ubuntu.com/security/CVE-2016-6816","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2016-8735","label":"ubuntu.com/security/CVE-2016-8735","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2016-0762","CVE-2016-5018","CVE-2016-6794","CVE-2016-6796","CVE-2016-6797","CVE-2016-6816","CVE-2016-8735"],"downstream":[],"duplicates":[],"related":["CVE-2016-0762","CVE-2016-5018","CVE-2016-6794","CVE-2016-6796","CVE-2016-6797","CVE-2016-6816","CVE-2016-8735"]},"timeline":[{"kind":"published","date":"2020-09-30T12:55:19.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-27T15:48:46.936Z","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":"2026-10-20T05:20:46.378Z","stale":false,"partial":false}}