{"schemaVersion":3,"id":"USN-8662-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"linux, linux-aws, linux-kvm, linux-lts-xenial 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  - x86 architecture;\n  - Cryptographic API;\n  - InfiniBand drivers;\n  - Media drivers;\n  - STMicroelectronics network drivers;\n  - Network drivers;\n  - Ext4 file system;\n  - IPv4 networking;\n  - TCP network protocol;\n  - Locking primitives;\n  - Ceph Core library;\n  - IPv6 networking;\n  - Multipath TCP;\n  - Netfilter;\n  - SCTP protocol;\n  - SMC sockets;\n(CVE-2026-31405, CVE-2026-31414, CVE-2026-31448, CVE-2026-31649,\nCVE-2026-43198, CVE-2026-43493, CVE-2026-43499, CVE-2026-46266,\nCVE-2026-52955, CVE-2026-52982, CVE-2026-52986, CVE-2026-53006,\nCVE-2026-53176, CVE-2026-53225, CVE-2026-53228, CVE-2026-53359)","dates":{"published":"2026-08-20T23:02:10.000Z","modified":"2026-08-21T05:44:35.252Z","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":"< 4.4.0-284.318","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.4.0-284.318","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-aws","name":"linux-aws","label":"linux-aws","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-aws","purlType":"deb","versions":[{"text":"< 4.4.0-1157.163","noFixRecorded":false,"fixedIn":null},{"text":"< 4.4.0-1195.210","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.4.0-1157.163 | < 4.4.0-1195.210","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-kvm","name":"linux-kvm","label":"linux-kvm","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-kvm","purlType":"deb","versions":[{"text":"< 4.4.0-1158.169","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.4.0-1158.169","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"linux-lts-xenial","name":"linux-lts-xenial","label":"linux-lts-xenial","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/linux-lts-xenial","purlType":"deb","versions":[{"text":"< 4.4.0-284.318~14.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.4.0-284.318~14.04.1","eol":null,"hubHref":null}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8662-1","label":"ubuntu.com/security/notices/USN-8662-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-31405","label":"ubuntu.com/security/CVE-2026-31405","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-31414","label":"ubuntu.com/security/CVE-2026-31414","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-31448","label":"ubuntu.com/security/CVE-2026-31448","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-31649","label":"ubuntu.com/security/CVE-2026-31649","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-43198","label":"ubuntu.com/security/CVE-2026-43198","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-43493","label":"ubuntu.com/security/CVE-2026-43493","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-43499","label":"ubuntu.com/security/CVE-2026-43499","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-46266","label":"ubuntu.com/security/CVE-2026-46266","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-52955","label":"ubuntu.com/security/CVE-2026-52955","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-52982","label":"ubuntu.com/security/CVE-2026-52982","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-52986","label":"ubuntu.com/security/CVE-2026-52986","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-53006","label":"ubuntu.com/security/CVE-2026-53006","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-53176","label":"ubuntu.com/security/CVE-2026-53176","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-53225","label":"ubuntu.com/security/CVE-2026-53225","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-53228","label":"ubuntu.com/security/CVE-2026-53228","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-53359","label":"ubuntu.com/security/CVE-2026-53359","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2026-31405","CVE-2026-31414","CVE-2026-31448","CVE-2026-31649","CVE-2026-43198","CVE-2026-43493","CVE-2026-43499","CVE-2026-46266","CVE-2026-52955","CVE-2026-52982","CVE-2026-52986","CVE-2026-53006","CVE-2026-53176","CVE-2026-53225","CVE-2026-53228","CVE-2026-53359"],"downstream":[],"duplicates":[],"related":["CVE-2026-31405","CVE-2026-31414","CVE-2026-31448","CVE-2026-31649","CVE-2026-43198","CVE-2026-43493","CVE-2026-43499","CVE-2026-46266","CVE-2026-52955","CVE-2026-52982","CVE-2026-52986","CVE-2026-53006","CVE-2026-53176","CVE-2026-53225","CVE-2026-53228","CVE-2026-53359"]},"timeline":[{"kind":"published","date":"2026-08-20T23:02:10.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-08-21T05:44:35.252Z","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":"2026-10-20T05:36:56.855Z","stale":false,"partial":false}}