Ubuntu Security Notice USN-3186-1
1st February, 2017
A security issue affects these releases of Ubuntu and its
- Ubuntu 16.10
- Ubuntu 16.04 LTS
iucode-tool could be made to crash or run programs if it opened a specially
– Intel processor microcode tool
It was discovered that iucode-tool incorrectly handled certain microcodes
when using the -tr loader. If a user were tricked into processing a
specially crafted microcode, a remote attacker could use this issue to
cause iucode-tool to crash, resulting in a denial of service, or possibly
execute arbitrary code.
The problem can be corrected by updating your system to the following
To update your system, please follow these instructions:
In general, a standard system update will make all the necessary changes.