{"schemaVersion":3,"id":"USN-8644-3","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"linux-azure, linux-azure-4.15, linux-azure-fips vulnerabilities\n\nSeveral security issues were discovered in the Linux kernel.\nAn attacker could possibly use these to compromise the system.\nThis update corrects flaws in the following subsystems:\n  - File systems infrastructure;\n  - OCFS2 file system;\n  - B.A.T.M.A.N. meshing protocol;\n  - SCTP protocol;\n  - TIPC protocol;\n(CVE-2026-43071, CVE-2026-52914, CVE-2026-52993, CVE-2026-53043,\nCVE-2026-53224, CVE-2026-53246, CVE-2026-53309)","dates":{"published":"2026-08-27T21:39:06.000Z","modified":"2026-08-31T17:26:26.728Z","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-azure","name":"linux-azure","label":"linux-azure","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-azure","purlType":"deb","versions":[{"text":"< 4.15.0-1206.221~14.04.1","noFixRecorded":false,"fixedIn":null},{"text":"< 4.15.0-1206.221~16.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.15.0-1206.221~14.04.1 | < 4.15.0-1206.221~16.04.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-azure-4.15","name":"linux-azure-4.15","label":"linux-azure-4.15","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-azure-4.15","purlType":"deb","versions":[{"text":"< 4.15.0-1206.221","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.15.0-1206.221","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-azure-fips","name":"linux-azure-fips","label":"linux-azure-fips","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-azure-fips","purlType":"deb","versions":[{"text":"< 4.15.0-2114.120","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.15.0-2114.120","eol":null,"hubHref":null}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8644-3","label":"ubuntu.com/security/notices/USN-8644-3","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-43071","label":"ubuntu.com/security/CVE-2026-43071","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-52914","label":"ubuntu.com/security/CVE-2026-52914","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-52993","label":"ubuntu.com/security/CVE-2026-52993","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-53043","label":"ubuntu.com/security/CVE-2026-53043","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-53224","label":"ubuntu.com/security/CVE-2026-53224","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-53246","label":"ubuntu.com/security/CVE-2026-53246","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-53309","label":"ubuntu.com/security/CVE-2026-53309","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2026-43071","CVE-2026-52914","CVE-2026-52993","CVE-2026-53043","CVE-2026-53224","CVE-2026-53246","CVE-2026-53309"],"downstream":[],"duplicates":[],"related":["CVE-2026-43071","CVE-2026-52914","CVE-2026-52993","CVE-2026-53043","CVE-2026-53224","CVE-2026-53246","CVE-2026-53309"]},"timeline":[{"kind":"published","date":"2026-08-27T21:39:06.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-08-31T17:26:26.728Z","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":"2026-10-20T03:32:23.063Z","stale":false,"partial":false}}