Canonical Releases Ubuntu 18.04 LTS Kernel Security Update for Raspberry Pi 2

In Summary :

Canonical released on Friday a new Linux kernel update for its Ubuntu 18.04 LTS (Bionic Beaver) operating system series addressing three security vulnerabilities affecting the kernel for Raspberry Pi 2 devices. Earlier this week, Canonical released an important kernel security update for Ubuntu 18.04 LTS, as well as other supported Ubuntu releases like Ubuntu 17.10, Ubuntu 16.04 LTS, and Ubuntu 14.04 LTS, to address various vulnerabilities affecting the kernel packages for 64-bit machines, Amazon Web Services (AWS) and Google Cloud Platform (GCP) systems, and cloud environments.

Now, the same kernel patch that was made available for Ubuntu 18.04 LTS users on 64-bit, AWS, GCP, and cloud environments is now available for Raspberry Pi 2 devices too, fixing an issue (CVE-2018-1092) in Linux kernel's EXT4 file system implementation discovered by Wen Xu, which could allow an attacker to crash the affected system by mounting a specially crafted EXT4 file system. [...]

kindly refer the following link as follow up :
https://news.softpedia.com/news/canonical-releases-ubuntu-18-04-lts-kernel-security-update-for-raspberry-pi-2-521579.shtml