Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation could reassemble mixed encrypted and plaintext fragments. A physically proximate attacker could possibly use this issue to inject packets or exfiltrate selected fragments. (CVE-2020-26147)
It was discovered that the bluetooth subsystem in the Linux kernel did not properly perform access control. An authenticated attacker could possibly use this to expose sensitive information. (CVE-2020-26558, CVE-2021-0129)
It was discovered that the RPA PCI Hotplug driver implementation in the Linux kernel did not properly handle device name writes via sysfs, leading to a buffer overflow. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-28972)
It was discovered that a use-after-free existed in the Bluetooth HCI driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33034)
Norbert Slusarek discovered that the CAN broadcast manger (bcm) protocol implementation in the Linux kernel did not properly initialize memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2021-34693)
马哲宇 discovered that the IEEE 1394 (Firewire) nosy packet sniffer driver in the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3483)
It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle HCI device initialization failure, leading to a double-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-3564)
Murray McAllister discovered that the joystick device interface in the Linux kernel did not properly validate data passed via an ioctl(). A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code on systems with a joystick device registered. (CVE-2021-3612)
It was discovered that the tracing subsystem in the Linux kernel did not properly keep track of per-cpu ring buffer state. A privileged attacker could use this to cause a denial of service. (CVE-2021-3679)
It was discovered that the MAX-3421 host USB device driver in the Linux kernel did not properly handle device removal events. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2021-38204)
It was discovered that the 6pack network protocol driver in the Linux kernel did not properly perform validation checks. A privileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-42008)
Amit Klein discovered that the IPv6 implementation in the Linux kernel could disclose internal state in some situations. An attacker could possibly use this to expose sensitive information. (CVE-2021-45485)
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "linux-cloud-tools-4.4.0-1099-aws": "4.4.0-1099.104", "linux-image-4.4.0-1099-aws": "4.4.0-1099.104", "linux-modules-4.4.0-1099-aws": "4.4.0-1099.104", "linux-aws-cloud-tools-4.4.0-1099": "4.4.0-1099.104", "linux-aws-tools-4.4.0-1099": "4.4.0-1099.104", "linux-image-4.4.0-1099-aws-dbgsym": "4.4.0-1099.104", "linux-buildinfo-4.4.0-1099-aws": "4.4.0-1099.104", "linux-aws-headers-4.4.0-1099": "4.4.0-1099.104", "linux-headers-4.4.0-1099-aws": "4.4.0-1099.104", "linux-tools-4.4.0-1099-aws": "4.4.0-1099.104" } ] }
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{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "linux-image-4.4.0-1135-aws": "4.4.0-1135.149", "linux-buildinfo-4.4.0-1135-aws": "4.4.0-1135.149", "linux-modules-4.4.0-1135-aws": "4.4.0-1135.149", "linux-tools-4.4.0-1135-aws": "4.4.0-1135.149", "linux-headers-4.4.0-1135-aws": "4.4.0-1135.149", "linux-image-4.4.0-1135-aws-dbgsym": "4.4.0-1135.149", "linux-aws-cloud-tools-4.4.0-1135": "4.4.0-1135.149", "linux-aws-tools-4.4.0-1135": "4.4.0-1135.149", "linux-aws-headers-4.4.0-1135": "4.4.0-1135.149", "linux-modules-extra-4.4.0-1135-aws": "4.4.0-1135.149", "linux-cloud-tools-4.4.0-1135-aws": "4.4.0-1135.149" } ] }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "linux-kvm-tools-4.4.0-1100": "4.4.0-1100.109", "linux-image-4.4.0-1100-kvm": "4.4.0-1100.109", "linux-modules-4.4.0-1100-kvm": "4.4.0-1100.109", "linux-tools-4.4.0-1100-kvm": "4.4.0-1100.109", "linux-image-4.4.0-1100-kvm-dbgsym": "4.4.0-1100.109", "linux-kvm-cloud-tools-4.4.0-1100": "4.4.0-1100.109", "linux-buildinfo-4.4.0-1100-kvm": "4.4.0-1100.109", "linux-kvm-headers-4.4.0-1100": "4.4.0-1100.109", "linux-headers-4.4.0-1100-kvm": "4.4.0-1100.109", "linux-cloud-tools-4.4.0-1100-kvm": "4.4.0-1100.109" } ] }