{"id":"USN-5092-1","summary":"linux, linux-aws, linux-aws-5.11, linux-gcp, linux-kvm, linux-oracle, linux-raspi vulnerabilities","details":"Valentina Palmiotti discovered that the io_uring subsystem in the Linux\nkernel could be coerced to free adjacent memory. A local attacker could use\nthis to execute arbitrary code. (CVE-2021-41073)\n\nOfek Kirzner, Adam Morrison, Benedict Schlueter, and Piotr Krysiuk\ndiscovered that the BPF verifier in the Linux kernel missed possible\nmispredicted branches due to type confusion, allowing a side-channel\nattack. An attacker could use this to expose sensitive information.\n(CVE-2021-33624)\n\nBenedict Schlueter discovered that the BPF subsystem in the Linux kernel\ndid not properly protect against Speculative Store Bypass (SSB) side-\nchannel attacks in some situations. A local attacker could possibly use\nthis to expose sensitive information. (CVE-2021-34556)\n\nPiotr Krysiuk discovered that the BPF subsystem in the Linux kernel did not\nproperly protect against Speculative Store Bypass (SSB) side-channel\nattacks in some situations. A local attacker could possibly use this to\nexpose sensitive information. (CVE-2021-35477)\n\nIt was discovered that the tracing subsystem in the Linux kernel did not\nproperly keep track of per-cpu ring buffer state. A privileged attacker\ncould use this to cause a denial of service. (CVE-2021-3679)\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\nAlexey Kardashevskiy discovered that the KVM implementation for PowerPC\nsystems in the Linux kernel did not properly validate RTAS arguments in\nsome situations. An attacker in a guest vm could use this to cause a denial\nof service (host OS crash) or possibly execute arbitrary code.\n(CVE-2021-37576)\n\nIt was discovered that the Virtio console implementation in the Linux\nkernel did not properly validate input lengths in some situations. A local\nattacker could possibly use this to cause a denial of service (system\ncrash). (CVE-2021-38160)\n\nMichael Wakabayashi discovered that the NFSv4 client implementation in the\nLinux kernel did not properly order connection setup operations. An\nattacker controlling a remote NFS server could use this to cause a denial\nof service on the client. (CVE-2021-38199)\n\nIt was discovered that the Sun RPC implementation in the Linux kernel\ncontained an out-of-bounds access error. A remote attacker could possibly\nuse this to cause a denial of service (system crash). (CVE-2021-38201)\n\nIt was discovered that the MAX-3421 host USB device driver in the Linux\nkernel did not properly handle device removal events. A physically\nproximate attacker could use this to cause a denial of service (system\ncrash). (CVE-2021-38204)\n\nIt was discovered that the Xilinx 10/100 Ethernet Lite device driver in the\nLinux kernel could report pointer addresses in some situations. An attacker\ncould use this information to ease the exploitation of another\nvulnerability. (CVE-2021-38205)\n","modified":"2026-04-27T16:03:38.914351107Z","published":"2021-09-28T04:09:07Z","related":["UBUNTU-CVE-2021-33624","UBUNTU-CVE-2021-34556","UBUNTU-CVE-2021-35477","UBUNTU-CVE-2021-3679","UBUNTU-CVE-2021-37159","UBUNTU-CVE-2021-37576","UBUNTU-CVE-2021-38160","UBUNTU-CVE-2021-38199","UBUNTU-CVE-2021-38201","UBUNTU-CVE-2021-38204","UBUNTU-CVE-2021-38205","UBUNTU-CVE-2021-41073"],"upstream":["CVE-2021-33624","CVE-2021-34556","CVE-2021-35477","CVE-2021-3679","CVE-2021-37159","CVE-2021-37576","CVE-2021-38160","CVE-2021-38199","CVE-2021-38201","CVE-2021-38204","CVE-2021-38205","CVE-2021-41073","UBUNTU-CVE-2021-33624","UBUNTU-CVE-2021-34556","UBUNTU-CVE-2021-35477","UBUNTU-CVE-2021-3679","UBUNTU-CVE-2021-37159","UBUNTU-CVE-2021-37576","UBUNTU-CVE-2021-38160","UBUNTU-CVE-2021-38199","UBUNTU-CVE-2021-38201","UBUNTU-CVE-2021-38204","UBUNTU-CVE-2021-38205","UBUNTU-CVE-2021-41073"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5092-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3679"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-33624"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-34556"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-35477"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-37159"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-37576"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-38160"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-38199"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-38201"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-38204"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-38205"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-41073"}],"affected":[{"package":{"name":"linux-aws-5.11","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/linux-aws-5.11@5.11.0-1019.20~20.04.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.11.0-1019.20~20.04.1"}]}],"versions":["5.11.0-1009.9~20.04.2","5.11.0-1014.15~20.04.1","5.11.0-1016.17~20.04.1","5.11.0-1017.18~20.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"5.11.0-1019.20~20.04.1","binary_name":"linux-aws-5.11-cloud-tools-5.11.0-1019"},{"binary_version":"5.11.0-1019.20~20.04.1","binary_name":"linux-aws-5.11-headers-5.11.0-1019"},{"binary_version":"5.11.0-1019.20~20.04.1","binary_name":"linux-aws-5.11-tools-5.11.0-1019"},{"binary_version":"5.11.0-1019.20~20.04.1","binary_name":"linux-buildinfo-5.11.0-1019-aws"},{"binary_version":"5.11.0-1019.20~20.04.1","binary_name":"linux-cloud-tools-5.11.0-1019-aws"},{"binary_version":"5.11.0-1019.20~20.04.1","binary_name":"linux-headers-5.11.0-1019-aws"},{"binary_version":"5.11.0-1019.20~20.04.1","binary_name":"linux-image-5.11.0-1019-aws"},{"binary_version":"5.11.0-1019.20~20.04.1","binary_name":"linux-modules-5.11.0-1019-aws"},{"binary_version":"5.11.0-1019.20~20.04.1","binary_name":"linux-modules-extra-5.11.0-1019-aws"},{"binary_version":"5.11.0-1019.20~20.04.1","binary_name":"linux-tools-5.11.0-1019-aws"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2021-3679"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-33624"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-34556"},{"id":"CVE-2021-35477","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"severity":[{"score":"CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2021-37159"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-38160"},{"severity":[{"score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-38199"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-38201"},{"severity":[{"score":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2021-38204"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2021-38205"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}],"id":"CVE-2021-41073"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5092-1.json"}}],"schema_version":"1.7.5"}