{"schemaVersion":3,"id":"USN-5361-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities\n\nIt was discovered that the VFIO PCI driver in the Linux kernel did not\nproperly handle attempts to access disabled memory spaces. A local attacker\ncould use this to cause a denial of service (system crash).\n(CVE-2020-12888)\n\nMathy Vanhoef discovered that the Linux kernel’s WiFi implementation did\nnot properly verify certain fragmented frames. A physically proximate\nattacker could possibly use this issue to inject or decrypt packets.\n(CVE-2020-26141)\n\nMathy Vanhoef discovered that the Linux kernel’s WiFi implementation\naccepted plaintext fragments in certain situations. A physically proximate\nattacker could use this issue to inject packets. (CVE-2020-26145)\n\nIt was discovered that a race condition existed in the Atheros Ath9k WiFi\ndriver in the Linux kernel. An attacker could possibly use this to expose\nsensitive information (WiFi network traffic). (CVE-2020-3702)\n\nIt was discovered a race condition existed in the Unix domain socket\nimplementation in the Linux kernel, leading to a use-after-free\nvulnerability. A local attacker could use this to cause a denial of service\n(system crash) or possibly execute arbitrary code. (CVE-2021-0920)\n\nIt was discovered that the IPv6 implementation in the Linux kernel\ncontained a use-after-free vulnerability. A local attacker could use this\nto cause a denial of service (system crash) or possibly execute arbitrary\ncode. (CVE-2021-0935)\n\nZygo Blaxell discovered that the btrfs file system implementation in the\nLinux kernel contained a race condition during certain cloning operations.\nA local attacker could possibly use this to cause a denial of service\n(system crash). (CVE-2021-28964)\n\nDan Carpenter discovered that the block device manager (dm) implementation\nin the Linux kernel contained a buffer overflow in the ioctl for listing\ndevices. A privileged local attacker could use this to cause a denial of\nservice (system crash). (CVE-2021-31916)\n\nIt was discovered that the Option USB High Speed Mobile device driver in\nthe Linux kernel did not properly handle error conditions. A physically\nproximate attacker could use this to cause a denial of service (system\ncrash) or possibly execute arbitrary code. (CVE-2021-37159)\n\nIt was discovered that the network packet filtering implementation in the\nLinux kernel did not properly initialize information in certain\ncircumstances. A local attacker could use this to expose sensitive\ninformation (kernel memory). (CVE-2021-39636)\n\nJann Horn discovered a race condition in the Unix domain socket\nimplementation in the Linux kernel that could result in a read-after-free.\nA local attacker could use this to cause a denial of service (system crash)\nor possibly execute arbitrary code. (CVE-2021-4083)\n\nLuo Likang discovered that the FireDTV Firewire driver in the Linux kernel\ndid not properly perform bounds checking in some situations. A local\nattacker could use this to cause a denial of service (system crash) or\npossibly execute arbitrary code. (CVE-2021-42739)\n\nBrendan Dolan-Gavitt discovered that the Marvell WiFi-Ex USB device driver\nin the Linux kernel did not properly handle some error conditions. A\nphysically proximate attacker could use this to cause a denial of service\n(system crash). (CVE-2021-43976)\n\nAmit Klein discovered that the IPv4 implementation in the Linux kernel\ncould disclose internal state in some situations. An attacker could\npossibly use this to expose sensitive information. (CVE-2021-45486)","dates":{"published":"2022-04-01T00:37:48.000Z","modified":"2026-09-09T14:33:25.079Z","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":"< 4.4.0-223.256","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.4.0-223.256","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":"< 4.4.0-1103.108","noFixRecorded":false,"fixedIn":null},{"text":"< 4.4.0-1139.153","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.4.0-1103.108 | < 4.4.0-1139.153","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":"< 4.4.0-1104.113","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.4.0-1104.113","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":"< 4.4.0-223.256~14.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 4.4.0-223.256~14.04.1","eol":null,"hubHref":null}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-5361-1","label":"ubuntu.com/security/notices/USN-5361-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2020-3702","label":"ubuntu.com/security/CVE-2020-3702","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-12888","label":"ubuntu.com/security/CVE-2020-12888","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-26141","label":"ubuntu.com/security/CVE-2020-26141","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2020-26145","label":"ubuntu.com/security/CVE-2020-26145","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-0920","label":"ubuntu.com/security/CVE-2021-0920","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-0935","label":"ubuntu.com/security/CVE-2021-0935","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-4083","label":"ubuntu.com/security/CVE-2021-4083","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-28964","label":"ubuntu.com/security/CVE-2021-28964","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-31916","label":"ubuntu.com/security/CVE-2021-31916","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-37159","label":"ubuntu.com/security/CVE-2021-37159","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-39636","label":"ubuntu.com/security/CVE-2021-39636","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-42739","label":"ubuntu.com/security/CVE-2021-42739","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-43976","label":"ubuntu.com/security/CVE-2021-43976","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2021-45486","label":"ubuntu.com/security/CVE-2021-45486","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2020-12888","CVE-2020-26141","CVE-2020-26145","CVE-2020-3702","CVE-2021-0920","CVE-2021-0935","CVE-2021-28964","CVE-2021-31916","CVE-2021-37159","CVE-2021-39636","CVE-2021-4083","CVE-2021-42739","CVE-2021-43976","CVE-2021-45486"],"downstream":[],"duplicates":[],"related":["CVE-2020-12888","CVE-2020-26141","CVE-2020-26145","CVE-2020-3702","CVE-2021-0920","CVE-2021-0935","CVE-2021-28964","CVE-2021-31916","CVE-2021-37159","CVE-2021-39636","CVE-2021-4083","CVE-2021-42739","CVE-2021-43976","CVE-2021-45486"]},"timeline":[{"kind":"published","date":"2022-04-01T00:37:48.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-09-09T14:33:25.079Z","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":"2026-10-21T19:51:44.239Z","stale":false,"partial":false}}