[USN-3186-1] iucode-tool vulnerability

Marc Deslauriers marc.deslauriers at canonical.com
Wed Feb 1 19:08:02 UTC 2017

Ubuntu Security Notice USN-3186-1
February 01, 2017

iucode-tool vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.10
- Ubuntu 16.04 LTS


iucode-tool could be made to crash or run programs if it opened a specially
crafted file.

Software Description:
- iucode-tool: 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.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.10:
  iucode-tool                     1.6.1-1ubuntu0.1

Ubuntu 16.04 LTS:
  iucode-tool                     1.5.1-1ubuntu0.1

In general, a standard system update will make all the necessary changes.


Package Information:

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