{"schemaVersion":3,"id":"USN-4255-2","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"linux-hwe, linux-aws-hwe vulnerabilities\n\nUSN-4255-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04\nLTS. This update provides the corresponding updates for the Linux\nHardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu\n16.04 LTS.\n\nIt was discovered that the Linux kernel did not properly clear data\nstructures on context switches for certain Intel graphics processors. A\nlocal attacker could use this to expose sensitive information.\n(CVE-2019-14615)\n\nIt was discovered that a race condition can lead to a use-after-free while\ndestroying GEM contexts in the i915 driver for the Linux kernel. A local\nattacker could use this to cause a denial of service (system crash) or\npossibly execute arbitrary code. (CVE-2020-7053)","dates":{"published":"2020-01-28T23:07:46.000Z","modified":"2026-06-03T13:33:29.537Z","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-aws-hwe","name":"linux-aws-hwe","label":"linux-aws-hwe","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-aws-hwe","purlType":"deb","versions":[{"text":"< 4.15.0-1058.60~16.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.15.0-1058.60~16.04.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-hwe","name":"linux-hwe","label":"linux-hwe","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-hwe","purlType":"deb","versions":[{"text":"< 4.15.0-76.86~16.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.15.0-76.86~16.04.1","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-4255-2","label":"ubuntu.com/security/notices/USN-4255-2","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2019-14615","label":"ubuntu.com/security/CVE-2019-14615","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-7053","label":"ubuntu.com/security/CVE-2020-7053","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2019-14615","CVE-2020-7053"],"downstream":[],"duplicates":[],"related":["CVE-2019-14615","CVE-2020-7053"]},"timeline":[{"kind":"published","date":"2020-01-28T23:07:46.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-03T13:33:29.537Z","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":"2026-10-19T16:56:03.659Z","stale":false,"partial":false}}