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Ubuntu Security Notice USN-3037-1

Ubuntu Security Notice USN-3037-1
Posted Jul 15, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3037-1 - Jan Stancek discovered that the Linux kernel's memory manager did not properly handle moving pages mapped by the asynchronous I/O ring buffer to the other nodes. A local attacker could use this to cause a denial of service.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-3070
MD5 | e1cd915ca81b0bf26d3879bc02cce05c

Ubuntu Security Notice USN-3037-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3037-1
July 14, 2016

linux-lts-vivid 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-vivid: Linux hardware enablement kernel from Vivid 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-3.19.0-65-generic 3.19.0-65.73~14.04.1
linux-image-3.19.0-65-generic-lpae 3.19.0-65.73~14.04.1
linux-image-3.19.0-65-lowlatency 3.19.0-65.73~14.04.1
linux-image-3.19.0-65-powerpc-e500mc 3.19.0-65.73~14.04.1
linux-image-3.19.0-65-powerpc-smp 3.19.0-65.73~14.04.1
linux-image-3.19.0-65-powerpc64-emb 3.19.0-65.73~14.04.1
linux-image-3.19.0-65-powerpc64-smp 3.19.0-65.73~14.04.1

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-3037-1
CVE-2016-3070

Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-vivid/3.19.0-65.73~14.04.1

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