UBUNTU 14.04 LTS KERNEL DRIVER

UBUNTU 14.04 LTS KERNEL DRIVER

Only for Ubuntu 20.10, Ubuntu 20.04 LTS, and Ubuntu 18.04 LTS systems, the new kernel updates address CVE-2021-32399, a race condition discovered in Linux kernelвЂ™s Bluetooth subsystem that could lead to a use-after-free of slab objects, allowing an attacker to execute arbitrary code, and CVE-2021-23134, a use-after-free vulnerability discovered by Nadav Markus in the NFC implementation, which could allow a privileged local attacker to crash the system or execute arbitrary code.ДЄlso fixed for Ubuntu 20.10, Ubuntu 20.04 LTS, and Ubuntu 18.04 LTS systems is CVE-2021-33034, a use-after-free vulnerability discovered in Linux kernelвЂ™s Bluetooth HCI driver that could allow a local attacker to cause a denial of service (system crash) or execute arbitrary code. This flaw affected all supported Ubuntu releases. Patched in these kernel updates is CVE-2021-33909, a 7-years-old privilege escalation flaw discovered by Qualys Research Labs in Linux kernelвЂ™s file system layer, which could allow an unprivileged user to create, mount, and then delete a large directory structure of over 1GB in size.

The new Ubuntu kernel security updates are available for Ubuntu 21.04 (Hirsute Hippo), Ubuntu 20.10 (Groovy Gorilla), Ubuntu 20.04 LTS (Focal Fossa), Ubuntu 18.04 LTS (Bionic Beaver), as well as as for the ESM (Extended Security Maintenance) branches of Ubuntu 16.04 and Ubuntu 14.04. Canonical published today new Linux kernel updates for all of its supported Ubuntu releases to address several security vulnerabilities discovered by various researchers in the upstream Linux kernels.

Ubuntu 14.04 lts kernel