{"schemaVersion":3,"id":"USN-6562-1","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-2023-6865,\nCVE-2023-6857, CVE-2023-6858, CVE-2023-6859, CVE-2023-6866, CVE-2023-6867,\nCVE-2023-6861, CVE-2023-6869, CVE-2023-6871, CVE-2023-6872, CVE-2023-6863,\nCVE-2023-6864, CVE-2023-6873)\n\nDoHyun Lee discovered that Firefox did not properly manage memory when used\non systems with the Mesa VM driver. An attacker could potentially exploit\nthis issue to execute arbitrary code. (CVE-2023-6856)\n\nGeorge Pantela and Hubert Kario discovered that Firefox using multiple NSS\nNIST curves which were susceptible to a side-channel attack known as\n\"Minerva\". An attacker could potentially exploit this issue to obtain\nsensitive information. (CVE-2023-6135)\n\nAndrew Osmond discovered that Firefox did not properly validate the textures\nproduced by remote decoders. An attacker could potentially exploit this\nissue to escape the sandbox. (CVE-2023-6860)","dates":{"published":"2024-01-02T03:25:53.000Z","modified":"2026-04-27T17:02:13.739Z","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":"< 121.0+build1-0ubuntu0.20.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 121.0+build1-0ubuntu0.20.04.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-6562-1","label":"ubuntu.com/security/notices/USN-6562-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-6135","label":"ubuntu.com/security/CVE-2023-6135","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-6856","label":"ubuntu.com/security/CVE-2023-6856","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-6857","label":"ubuntu.com/security/CVE-2023-6857","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-6858","label":"ubuntu.com/security/CVE-2023-6858","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-6859","label":"ubuntu.com/security/CVE-2023-6859","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-6860","label":"ubuntu.com/security/CVE-2023-6860","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-6861","label":"ubuntu.com/security/CVE-2023-6861","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-6863","label":"ubuntu.com/security/CVE-2023-6863","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-6864","label":"ubuntu.com/security/CVE-2023-6864","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-6865","label":"ubuntu.com/security/CVE-2023-6865","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-6866","label":"ubuntu.com/security/CVE-2023-6866","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-6867","label":"ubuntu.com/security/CVE-2023-6867","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-6869","label":"ubuntu.com/security/CVE-2023-6869","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-6871","label":"ubuntu.com/security/CVE-2023-6871","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-6872","label":"ubuntu.com/security/CVE-2023-6872","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2023-6873","label":"ubuntu.com/security/CVE-2023-6873","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2023-6135","CVE-2023-6856","CVE-2023-6857","CVE-2023-6858","CVE-2023-6859","CVE-2023-6860","CVE-2023-6861","CVE-2023-6863","CVE-2023-6864","CVE-2023-6865","CVE-2023-6866","CVE-2023-6867","CVE-2023-6869","CVE-2023-6871","CVE-2023-6872","CVE-2023-6873"],"downstream":[],"duplicates":[],"related":["CVE-2023-6135","CVE-2023-6856","CVE-2023-6857","CVE-2023-6858","CVE-2023-6859","CVE-2023-6860","CVE-2023-6861","CVE-2023-6863","CVE-2023-6864","CVE-2023-6865","CVE-2023-6866","CVE-2023-6867","CVE-2023-6869","CVE-2023-6871","CVE-2023-6872","CVE-2023-6873"]},"timeline":[{"kind":"published","date":"2024-01-02T03:25:53.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-27T17:02:13.739Z","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":"2026-10-21T03:02:23.970Z","stale":false,"partial":false}}