USN-3404-1: Linux kernel vulnerability
28 August 2017
linux, linux-raspi2 vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.04
The system could be made to crash under certain conditions.
- linux - Linux kernel
- linux-raspi2 - Linux kernel for Raspberry Pi 2
A reference count bug was discovered in the Linux kernel ipx protocol stack. A local attacker could exploit this flaw to cause a denial of service or possibly other unspecified problems.
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 17.04
- linux-image-4.10.0-1016-raspi2 - 4.10.0-1016.19
- linux-image-4.10.0-33-generic - 4.10.0-33.37
- linux-image-4.10.0-33-generic-lpae - 4.10.0-33.37
- linux-image-4.10.0-33-lowlatency - 4.10.0-33.37
- linux-image-generic - 188.8.131.52.33
- linux-image-generic-lpae - 184.108.40.206.33
- linux-image-lowlatency - 220.127.116.11.33
- linux-image-raspi2 - 18.104.22.1686.17
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
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.