Canonical has pushed the first kernel security patch for Ubuntu 17.04 (Zesty Zapus). The latest update brings fixes for a total of six critical security issues.
Ubuntu Security Notice USN-3293-1 details the security fixes that affect linux-genetic, linux-raspi2 and linux-lowlatency packages within Ubuntu 17.04. Among the major vulnerabilities, CVE-2017-2596 that was discovered by Dimtry Vyukov in KVM implementation in the Linux kernel has been patched. The update has also fixed CVE-2017-7187 that was discovered in generic SCSI and CVE-2017-7616 that was identified in mbind compact and set_mempolicy syscalls.
Moreover, the issues that are addressed with the latest update protect systems from DDoS (distributed-denial-of-service) attack and veil sensitive information stored in the kernel memory.
Ubuntu users can find the update in Software Updater utility. The update process can also be performed using Terminal.
Notably, the update is designed for all supported Ubuntu distributions. This means you can have the improved experience on Kubuntu, Ubuntu MATE and Ubuntu GNOME in addition to the original Ubuntu version.