=========================================================================== Ubuntu Security Notice USN-3531-1 January 11, 2018 intel-microcode update =========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 17.10 - Ubuntu 17.04 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: The system could be made to expose sensitive information. Software Description: - intel-microcode: Processor microcode for Intel CPUs Details: It was discovered that microprocessors utilizing speculative execution and branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Spectre. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2017-5715) This update provides the microcode updates required for the corresponding Linux kernel updates. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 17.10: intel-microcode 3.20180108.0~ubuntu17.10.1 Ubuntu 17.04: intel-microcode 3.20180108.0~ubuntu17.04.1 Ubuntu 16.04 LTS: intel-microcode 3.20180108.0~ubuntu16.04.2 Ubuntu 14.04 LTS: intel-microcode 3.20180108.0~ubuntu14.04.2 After a standard system update you need to reboot your computer to make all the necessary changes. References: https://www.ubuntu.com/usn/usn-3531-1 CVE-2017-5715 Package Information: https://launchpad.net/ubuntu/+source/intel-microcode/3.20180108.0~ubuntu17.10.1 https://launchpad.net/ubuntu/+source/intel-microcode/3.20180108.0~ubuntu17.04.1 https://launchpad.net/ubuntu/+source/intel-microcode/3.20180108.0~ubuntu16.04.2 https://launchpad.net/ubuntu/+source/intel-microcode/3.20180108.0~ubuntu14.04.2 --IkTThVxAutwXXsaF5aUjhmlXVbGOO0wAL--