{"schemaVersion":3,"id":"USN-6320-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"firefox vulnerabilities\n\nMultiple security issues were discovered in Firefox. If a user were\ntricked into opening a specially crafted website, an attacker could\npotentially exploit these to cause a denial of service, obtain sensitive\ninformation across domains, or execute arbitrary code. (CVE-2023-4573,\nCVE-2023-4574, CVE-2023-4575, CVE-2023-4578, CVE-2023-4581, CVE-2023-4583,\nCVE-2023-4584, CVE-2023-4585)\n\nLukas Bernhard discovered that Firefox did not properly manage memory when\nthe \"UpdateRegExpStatics\" attempted to access \"initialStringHeap\". An\nattacker could potentially exploit this issue to cause a denial of service.\n(CVE-2023-4577)\n\nMalte Jürgens discovered that Firefox did not properly handle search\nqueries if the search query itself was a well formed URL. An attacker could\npotentially exploit this issue to perform spoofing attacks. (CVE-2023-4579)\n\nHarveer Singh discovered that Firefox did not properly handle push\nnotifications stored on disk in private browsing mode. An attacker could\npotentially exploits this issue to access sensitive information.\n(CVE-2023-4580)","dates":{"published":"2023-08-30T04:21:36.000Z","modified":"2026-04-22T10:38:48.811Z","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":"< 117.0+build2-0ubuntu0.20.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 117.0+build2-0ubuntu0.20.04.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-6320-1","label":"ubuntu.com/security/notices/USN-6320-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-4573","label":"ubuntu.com/security/CVE-2023-4573","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-4574","label":"ubuntu.com/security/CVE-2023-4574","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-4575","label":"ubuntu.com/security/CVE-2023-4575","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-4577","label":"ubuntu.com/security/CVE-2023-4577","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-4578","label":"ubuntu.com/security/CVE-2023-4578","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-4579","label":"ubuntu.com/security/CVE-2023-4579","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-4580","label":"ubuntu.com/security/CVE-2023-4580","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-4581","label":"ubuntu.com/security/CVE-2023-4581","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-4583","label":"ubuntu.com/security/CVE-2023-4583","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-4584","label":"ubuntu.com/security/CVE-2023-4584","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-4585","label":"ubuntu.com/security/CVE-2023-4585","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2023-4573","CVE-2023-4574","CVE-2023-4575","CVE-2023-4577","CVE-2023-4578","CVE-2023-4579","CVE-2023-4580","CVE-2023-4581","CVE-2023-4583","CVE-2023-4584","CVE-2023-4585"],"downstream":[],"duplicates":[],"related":["CVE-2023-4573","CVE-2023-4574","CVE-2023-4575","CVE-2023-4577","CVE-2023-4578","CVE-2023-4579","CVE-2023-4580","CVE-2023-4581","CVE-2023-4583","CVE-2023-4584","CVE-2023-4585"]},"timeline":[{"kind":"published","date":"2023-08-30T04:21:36.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-22T10:38:48.811Z","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":"2026-10-20T12:20:23.513Z","stale":false,"partial":false}}