1. Ubuntu Security Notices
  2. USN-3292-1

USN-3292-1: Linux kernel vulnerability

Publication date

17 May 2017

Overview

The system could be made to crash or run programs as an administrator.

Releases

Packages

Details

Jason Donenfeld discovered a heap overflow in the MACsec module in the
Linux kernel. An attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code.

Jason Donenfeld discovered a heap overflow in the MACsec module in the
Linux kernel. An attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code.

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

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.

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

Ubuntu Release Package Version
16.10 yakkety linux-image-powerpc-smp –  4.8.0.52.64
linux-image-powerpc-e500mc –  4.8.0.52.64
linux-image-4.8.0-52-lowlatency –  4.8.0-52.55
linux-image-generic-lpae –  4.8.0.52.64
linux-image-4.8.0-52-generic –  4.8.0-52.55
linux-image-4.8.0-52-generic-lpae –  4.8.0-52.55
linux-image-4.8.0-52-powerpc64-emb –  4.8.0-52.55
linux-image-generic –  4.8.0.52.64
linux-image-4.8.0-52-powerpc-e500mc –  4.8.0-52.55
linux-image-4.8.0-1036-raspi2 –  4.8.0-1036.39
linux-image-lowlatency –  4.8.0.52.64
linux-image-powerpc64-emb –  4.8.0.52.64
linux-image-raspi2 –  4.8.0.1036.40
linux-image-4.8.0-52-powerpc-smp –  4.8.0-52.55

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References

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