If you’re using the latest Ubuntu 17.10 (Artful Aardvark) operating system on your personal computer, you should know that it received it’s first major kernel update since the official release back in October 19, 2017. The update addresses a total of 20 security vulnerabilities for Ubuntu 17.10’s Linux 4.13 kernel packages, including the Raspberry Pi 2 one. Among the security issues patched in this update, five are related to Linux kernel’s USB subsystem, including a use-after-free vulnerability, which could allow a physically proximate attacker to crash the affected system by causing a denial of service (DoS attack) or possibly execute arbitrary code. Other three are related to the ALSA subsystem, including a race condition.