Released earlier this month, the latest Debian GNU/Linux 10 “Buster” operating system just got its first Linux kernel security update, which addresses a security flaw (CVE-2019-13272) discovered by Google Project Zero’s Jann Horn in Linux kernel’s ptrace subsyste, which could let a local user obtain root privileges. The issues also apears to affect the older Debian GNU/Linux 9 “Stretch” and Debian GNU/Linux 8 “Jessie” operating systems series, but the Debian Project released kernel security patches for all supported versions. Therefore, users are urged to update their installations to the new kernel versions as soon as possible.