========================================================================== Ubuntu Security Notice USN-3266-1 April 25, 2017
linux, linux-raspi2 vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.10 Summary: The system could be made to crash under certain conditions. Software Description: - linux: Linux kernel - linux-raspi2: Linux kernel for Raspberry Pi 2 Details: Alexander Popov discovered that a race condition existed in the Stream Control Transmission Protocol (SCTP) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.10: linux-image-4.8.0-1035-raspi2 4.8.0-1035.38 linux-image-4.8.0-49-generic 4.8.0-49.52 linux-image-4.8.0-49-generic-lpae 4.8.0-49.52 linux-image-4.8.0-49-lowlatency 4.8.0-49.52 linux-image-4.8.0-49-powerpc-e500mc 4.8.0-49.52 linux-image-4.8.0-49-powerpc-smp 4.8.0-49.52 linux-image-generic 4.8.0.49.61 linux-image-generic-lpae 4.8.0.49.61 linux-image-lowlatency 4.8.0.49.61 linux-image-powerpc-e500mc 4.8.0.49.61 linux-image-powerpc-smp 4.8.0.49.61 linux-image-raspi2 4.8.0.1035.39 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: http://www.ubuntu.com/usn/usn-3266-1 CVE-2017-5986 Package Information: https://launchpad.net/ubuntu/+source/linux/4.8.0-49.52 https://launchpad.net/ubuntu/+source/linux-raspi2/4.8.0-1035.38
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