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USN-3037-1: Linux kernel (Vivid HWE) vulnerability

USN-3037-1: Linux kernel (Vivid HWE) vulnerability

Ubuntu Security Notice USN-3037-1

14th July, 2016

linux-lts-vivid vulnerability

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

Summary

The system could be made to crash under certain conditions.

Software description

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 version:

Ubuntu 14.04 LTS:
linux-image-3.19.0-65-powerpc64-smp

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-powerpc-e500mc

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-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

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

CVE-2016-3070

Source: USN-3037-1: Linux kernel (Vivid HWE) vulnerability

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