{"schemaVersion":3,"id":"USN-4759-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"glib2.0 vulnerabilities\n\nKrzesimir Nowak discovered that GLib incorrectly handled certain large\nbuffers. A remote attacker could use this issue to cause applications\nlinked to GLib to crash, resulting in a denial of service, or possibly\nexecute arbitrary code. (CVE-2021-27218)\n\nKevin Backhouse discovered that GLib incorrectly handled certain memory\nallocations. A remote attacker could use this issue to cause applications\nlinked to GLib to crash, resulting in a denial of service, or possibly\nexecute arbitrary code. (CVE-2021-27219)","dates":{"published":"2021-03-08T18:15:59.000Z","modified":"2026-04-27T15:49:09.418Z","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":"glib2.0","name":"glib2.0","label":"glib2.0","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/glib2.0","purlType":"deb","versions":[{"text":"< 2.48.2-0ubuntu4.7","noFixRecorded":false,"fixedIn":null},{"text":"< 2.56.4-0ubuntu0.18.04.7","noFixRecorded":false,"fixedIn":null},{"text":"< 2.64.6-1~ubuntu20.04.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.48.2-0ubuntu4.7 | < 2.56.4-0ubuntu0.18.04.7 | < 2.64.6-1~ubuntu20.04.2","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-4759-1","label":"ubuntu.com/security/notices/USN-4759-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-27218","label":"ubuntu.com/security/CVE-2021-27218","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-27219","label":"ubuntu.com/security/CVE-2021-27219","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2021-27218","CVE-2021-27219"],"downstream":[],"duplicates":[],"related":["CVE-2021-27218","CVE-2021-27219"]},"timeline":[{"kind":"published","date":"2021-03-08T18:15:59.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-27T15:49:09.418Z","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":"2026-10-19T16:44:15.358Z","stale":false,"partial":false}}