{"schemaVersion":3,"id":"USN-3235-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"libxml2 vulnerabilities\n\nIt was discovered that libxml2 incorrectly handled format strings. If a\nuser or automated system were tricked into opening a specially crafted\ndocument, an attacker could possibly cause libxml2 to crash, resulting in a\ndenial of service. This issue only affected Ubuntu 12.04 LTS, Ubuntu 14.04\nLTS, and Ubuntu 16.04 LTS. (CVE-2016-4448)\n\nIt was discovered that libxml2 incorrectly handled certain malformed\ndocuments. If a user or automated system were tricked into opening a\nspecially crafted document, an attacker could cause libxml2 to crash,\nresulting in a denial of service, or possibly execute arbitrary code.\n(CVE-2016-4658)\n\nNick Wellnhofer discovered that libxml2 incorrectly handled certain\nmalformed documents. If a user or automated system were tricked into\nopening a specially crafted document, an attacker could cause libxml2 to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode. (CVE-2016-5131)","dates":{"published":"2017-03-16T11:46:37.000Z","modified":"2026-04-22T09:33:17.489Z","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":"libxml2","name":"libxml2","label":"libxml2","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/libxml2","purlType":"deb","versions":[{"text":"< 2.9.1+dfsg1-3ubuntu4.9","noFixRecorded":false,"fixedIn":null},{"text":"< 2.9.3+dfsg1-1ubuntu0.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.9.1+dfsg1-3ubuntu4.9 | < 2.9.3+dfsg1-1ubuntu0.2","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-3235-1","label":"ubuntu.com/security/notices/USN-3235-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2016-4448","label":"ubuntu.com/security/CVE-2016-4448","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2016-4658","label":"ubuntu.com/security/CVE-2016-4658","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2016-5131","label":"ubuntu.com/security/CVE-2016-5131","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2016-4448","CVE-2016-4658","CVE-2016-5131"],"downstream":[],"duplicates":[],"related":["CVE-2016-4448","CVE-2016-4658","CVE-2016-5131"]},"timeline":[{"kind":"published","date":"2017-03-16T11:46:37.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-22T09:33:17.489Z","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":"2026-10-19T19:30:44.308Z","stale":false,"partial":false}}