{"id":"USN-5265-1","summary":"linux, linux-aws, linux-aws-5.11, linux-aws-5.13, linux-azure-5.11, linux-gcp, linux-gcp-5.11, linux-hwe-5.13, linux-kvm, linux-oem-5.13, linux-oracle, linux-oracle-5.11, linux-raspi vulnerabilities","details":"Jeremy Cline discovered a use-after-free in the nouveau graphics driver of\nthe Linux kernel during device removal. A privileged or physically\nproximate attacker could use this to cause a denial of service (system\ncrash). (CVE-2020-27820)\n\nIt was discovered that the Bluetooth subsystem 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-2021-3640)\n\nLikang Luo discovered that a race condition existed in the Bluetooth\nsubsystem of the Linux kernel, leading to a use-after-free vulnerability. A\nlocal attacker could use this to cause a denial of service (system crash)\nor possibly execute arbitrary code. (CVE-2021-3752)\n\nIt was discovered that the SCTP protocol implementation in the Linux kernel\ndid not properly verify VTAGs in some situations. A remote attacker could\npossibly use this to cause a denial of service (connection disassociation).\n(CVE-2021-3772)\n\nIt was discovered that the eBPF implementation in the Linux kernel\ncontained a race condition around read-only maps. A privileged attacker\ncould use this to modify read-only maps. (CVE-2021-4001)\n\nIt was discovered that the NFS server implementation in the Linux kernel\ncontained an out-of-bounds write vulnerability. A local attacker could use\nthis to cause a denial of service (system crash) or possibly execute\narbitrary code. (CVE-2021-4090)\n\nFelix Wilhelm discovered that the KVM implementation in the Linux kernel\ndid not properly handle exit events from AMD Secure Encrypted\nVirtualization-Encrypted State (SEV-ES) guest VMs. An attacker in a guest\nVM could use this to cause a denial of service (host kernel crash) or\npossibly execute arbitrary code in the host kernel. (CVE-2021-4093)\n\nLin Ma discovered that the NFC Controller Interface (NCI) implementation in\nthe Linux kernel contained a race condition, 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-2021-4202)\n\nIt was discovered that the AMD Radeon GPU driver in the Linux kernel did\nnot properly validate writes in the debugfs file system. A privileged\nattacker could use this to cause a denial of service (system crash) or\npossibly execute arbitrary code. (CVE-2021-42327)\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","modified":"2026-05-23T01:48:38.011262619Z","published":"2022-02-03T05:40:51Z","related":["UBUNTU-CVE-2020-27820","UBUNTU-CVE-2021-3640","UBUNTU-CVE-2021-3752","UBUNTU-CVE-2021-3772","UBUNTU-CVE-2021-4001","UBUNTU-CVE-2021-4090","UBUNTU-CVE-2021-4093","UBUNTU-CVE-2021-4202","UBUNTU-CVE-2021-42327","UBUNTU-CVE-2021-42739"],"upstream":["CVE-2021-4001","CVE-2021-4090","CVE-2021-4093","CVE-2021-42327","UBUNTU-CVE-2021-4001","UBUNTU-CVE-2021-4090","UBUNTU-CVE-2021-4093","UBUNTU-CVE-2021-42327"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5265-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-4001"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-4090"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-4093"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-42327"}],"affected":[{"package":{"name":"linux-aws-5.11","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/linux-aws-5.11?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.11.0-1028.31~20.04.1"}]}],"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","5.11.0-1019.20~20.04.1","5.11.0-1020.21~20.04.2","5.11.0-1021.22~20.04.2","5.11.0-1022.23~20.04.1","5.11.0-1023.24~20.04.1","5.11.0-1025.27~20.04.1","5.11.0-1027.30~20.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"5.11.0-1028.31~20.04.1","binary_name":"linux-aws-5.11-cloud-tools-5.11.0-1028"},{"binary_version":"5.11.0-1028.31~20.04.1","binary_name":"linux-aws-5.11-headers-5.11.0-1028"},{"binary_version":"5.11.0-1028.31~20.04.1","binary_name":"linux-aws-5.11-tools-5.11.0-1028"},{"binary_version":"5.11.0-1028.31~20.04.1","binary_name":"linux-buildinfo-5.11.0-1028-aws"},{"binary_version":"5.11.0-1028.31~20.04.1","binary_name":"linux-cloud-tools-5.11.0-1028-aws"},{"binary_version":"5.11.0-1028.31~20.04.1","binary_name":"linux-headers-5.11.0-1028-aws"},{"binary_version":"5.11.0-1028.31~20.04.1","binary_name":"linux-image-unsigned-5.11.0-1028-aws"},{"binary_version":"5.11.0-1028.31~20.04.1","binary_name":"linux-modules-5.11.0-1028-aws"},{"binary_version":"5.11.0-1028.31~20.04.1","binary_name":"linux-modules-extra-5.11.0-1028-aws"},{"binary_version":"5.11.0-1028.31~20.04.1","binary_name":"linux-tools-5.11.0-1028-aws"}],"availability":"No 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