{"schemaVersion":3,"id":"USN-4689-4","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.4, linux-hwe-5.8, linux-oracle update\n\nUSN-4689-3 fixed vulnerabilities in the NVIDIA server graphics drivers.\nThis update provides the corresponding updates for the NVIDIA Linux\nDKMS kernel modules.\n\nOriginal advisory details:\n\n It was discovered that the NVIDIA GPU display driver for the Linux kernel\n contained a vulnerability that allowed user-mode clients to access legacy\n privileged APIs. A local attacker could use this to cause a denial of\n service or escalate privileges. (CVE-2021-1052)\n\n It was discovered that the NVIDIA GPU display driver for the Linux kernel\n did not properly validate a pointer received from userspace in some\n situations. A local attacker could use this to cause a denial of service.\n (CVE-2021-1053)\n\n Xinyuan Lyu discovered that the NVIDIA GPU display driver for the Linux\n kernel did not properly restrict device-level GPU isolation. A local\n attacker could use this to cause a denial of service or possibly expose\n sensitive information. (CVE-2021-1056)","dates":{"published":"2021-01-21T02:34:07.000Z","modified":"2026-04-22T10:11:19.305Z","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":"linux","name":"linux","label":"linux","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux","purlType":"deb","versions":[{"text":"< 4.15.0-134.138","noFixRecorded":false,"fixedIn":null},{"text":"< 5.4.0-64.72","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.15.0-134.138 | < 5.4.0-64.72","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-hwe-5.4","name":"linux-hwe-5.4","label":"linux-hwe-5.4","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-hwe-5.4","purlType":"deb","versions":[{"text":"< 5.4.0-64.72~18.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.4.0-64.72~18.04.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-hwe-5.8","name":"linux-hwe-5.8","label":"linux-hwe-5.8","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-hwe-5.8","purlType":"deb","versions":[{"text":"< 5.8.0-40.45~20.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 5.8.0-40.45~20.04.1","eol":null,"hubHref":null}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-4689-4","label":"ubuntu.com/security/notices/USN-4689-4","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-1052","label":"ubuntu.com/security/CVE-2021-1052","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-1053","label":"ubuntu.com/security/CVE-2021-1053","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2021-1052","CVE-2021-1053"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2021-01-21T02:34:07.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-22T10:11:19.305Z","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":"2026-10-21T01:12:27.236Z","stale":false,"partial":false}}