Ubuntu Security Notices
USN-2928-1

USN-2928-1: Linux kernel vulnerability

Publication date

14 March 2016

Overview

The system could be made to crash or run programs as an administrator by someone with physical access.

Releases

12.04

Packages

linux - Linux kernel

Details

Andrey Konovalov discovered that the ALSA USB MIDI driver incorrectly
performed a double-free. A local attacker with physical access could use
this to cause a denial of service (system crash) or possibly execute
arbitrary code with administrative privileges.

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
12.04 precise	linux-image-3.2.0-101-omap – 3.2.0-101.141
	linux-image-3.2.0-101-powerpc64-smp – 3.2.0-101.141
	linux-image-3.2.0-101-highbank – 3.2.0-101.141
	linux-image-3.2.0-101-powerpc-smp – 3.2.0-101.141
	linux-image-3.2.0-101-generic – 3.2.0-101.141
	linux-image-3.2.0-101-virtual – 3.2.0-101.141
	linux-image-3.2.0-101-generic-pae – 3.2.0-101.141

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References

CVE-2016-2384

CVE-2016-2384

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