Home / mailings [USN-3036-1] Linux kernel (Utopic HWE) vulnerability
Posted on 15 July 2016
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==========================================================================
Ubuntu Security Notice USN-3036-1
July 14, 2016
linux-lts-utopic vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 LTS
Summary:
The system could be made to crash under certain conditions.
Software Description:
- linux-lts-utopic: Linux hardware enablement kernel from Utopic for Trusty
Details:
Jan Stancek discovered that the Linux kernel's memory manager did not
properly handle moving pages mapped by the asynchronous I/O (AIO) ring
buffer to the other nodes. A local attacker could use this to cause a
denial of service (system crash).
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 LTS:
linux-image-3.16.0-77-generic 3.16.0-77.99~14.04.1
linux-image-3.16.0-77-generic-lpae 3.16.0-77.99~14.04.1
linux-image-3.16.0-77-lowlatency 3.16.0-77.99~14.04.1
linux-image-3.16.0-77-powerpc-e500mc 3.16.0-77.99~14.04.1
linux-image-3.16.0-77-powerpc-smp 3.16.0-77.99~14.04.1
linux-image-3.16.0-77-powerpc64-emb 3.16.0-77.99~14.04.1
linux-image-3.16.0-77-powerpc64-smp 3.16.0-77.99~14.04.1
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.
References:
http://www.ubuntu.com/usn/usn-3036-1
CVE-2016-3070
Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-utopic/3.16.0-77.99~14.04.1
