{"schemaVersion":3,"id":"USN-4628-3","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"intel-microcode vulnerabilities\n\nUSN-4628-1 provided updated Intel Processor Microcode for various processor\ntypes.  This update provides the corresponding updates for some additional\nprocessor types.\n\nOriginal advisory details:\n\n Moritz Lipp, Michael Schwarz, Andreas Kogler, David Oswald, Catherine\n Easdon, Claudio Canella, and Daniel Gruss discovered that the Intel Running\n Average Power Limit (RAPL) feature of some Intel processors allowed a side-\n channel attack based on power consumption measurements. A local attacker\n could possibly use this to expose sensitive information. (CVE-2020-8695)\n\n Ezra Caltum, Joseph Nuzman, Nir Shildan and Ofir Joseff discovered that\n some Intel(R) Processors did not properly remove sensitive information\n before storage or transfer in some situations. A local attacker could\n possibly use this to expose sensitive information. (CVE-2020-8696)\n\n Ezra Caltum, Joseph Nuzman, Nir Shildan and Ofir Joseff discovered that\n some Intel(R) Processors did not properly isolate shared resources in some\n situations. A local attacker could possibly use this to expose sensitive\n information. (CVE-2020-8698)","dates":{"published":"2021-05-17T09:50:39.000Z","modified":"2026-02-10T04:41:58.000Z","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":"intel-microcode","name":"intel-microcode","label":"intel-microcode","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/intel-microcode","purlType":"deb","versions":[{"text":"< 3.20210216.0ubuntu0.18.04.1","noFixRecorded":false,"fixedIn":null},{"text":"< 3.20210216.0ubuntu0.20.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.20210216.0ubuntu0.18.04.1 | < 3.20210216.0ubuntu0.20.04.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-4628-3","label":"ubuntu.com/security/notices/USN-4628-3","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2020-8695","label":"ubuntu.com/security/CVE-2020-8695","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-8696","label":"ubuntu.com/security/CVE-2020-8696","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-8698","label":"ubuntu.com/security/CVE-2020-8698","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2020-8695","CVE-2020-8696","CVE-2020-8698"],"downstream":[],"duplicates":[],"related":["CVE-2020-8695","CVE-2020-8696","CVE-2020-8698"]},"timeline":[{"kind":"published","date":"2021-05-17T09:50:39.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-02-10T04:41:58.000Z","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":"2026-10-19T21:10:20.575Z","stale":false,"partial":false}}