{"schemaVersion":3,"id":"USN-2723-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"firefox vulnerabilities\n\nA use-after-free was discovered when resizing a canvas element during\nrestyling in some circumstances. If a user were tricked in to opening a\nspecially crafted website, an attacker could potentially exploit this to\ncause a denial of service via application crash, or execute arbitrary code\nwith the privileges of the user invoking Firefox. (CVE-2015-4497)\n\nBas Venis discovered that the addon install permission prompt could be\nbypassed using data: URLs in some circumstances. It was also discovered\nthat the installation notification could be made to appear over another\nsite. If a user were tricked in to opening a specially crafted website, an\nattacker could potentially exploit this to install a malicious addon.\n(CVE-2015-4498)","dates":{"published":"2015-08-27T18:21:35.000Z","modified":"2026-04-22T09:15:25.257Z","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":"firefox","name":"firefox","label":"firefox","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/firefox","purlType":"deb","versions":[{"text":"< 40.0.3+build1-0ubuntu0.14.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 40.0.3+build1-0ubuntu0.14.04.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-2723-1","label":"ubuntu.com/security/notices/USN-2723-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2015-4497","label":"ubuntu.com/security/CVE-2015-4497","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2015-4498","label":"ubuntu.com/security/CVE-2015-4498","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2015-4497","CVE-2015-4498"],"downstream":[],"duplicates":[],"related":["CVE-2015-4497","CVE-2015-4498"]},"timeline":[{"kind":"published","date":"2015-08-27T18:21:35.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-22T09:15:25.257Z","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":"2026-10-21T01:31:23.609Z","stale":false,"partial":false}}