The following security updates has been released for Ubuntu Linux:
USN-3976-1: Samba vulnerabilitySamba, Intel Microcode, QEMU, Linux Kernel Updates for Ubuntu
USN-3976-2: Samba vulnerability
USN-3977-1: Intel Microcode update
USN-3978-1: QEMU update
USN-3979-1: Linux kernel vulnerabilities
USN-3980-1: Linux kernel vulnerabilities
USN-3980-2: Linux kernel (HWE) vulnerabilities
USN-3981-1: Linux kernel vulnerabilities
USN-3981-2: Linux kernel (HWE) vulnerabilities
USN-3982-1: Linux kernel vulnerabilities
USN-3982-2: Linux kernel (Xenial HWE) vulnerabilities
USN-3983-1: Linux kernel vulnerabilities
USN-3983-2: Linux kernel (Trusty HWE) vulnerabilities
USN-3984-1: Linux kernel vulnerabilities