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=========================================================================Ubuntu Security Notice USN-2764-1
October 05, 2015

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 or run programs as an administrator.

Software Description:
- linux-lts-utopic: Linux hardware enablement kernel from Utopic

Details:

Dmitry Vyukov discovered that the Linux kernel did not properly initialize
IPC object state in certain situations. A local attacker could use this to
escalate their privileges, expose confidential information, or 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-3.16.0-50-generic   3.16.0-50.67~14.04.1
  linux-image-3.16.0-50-generic-lpae  3.16.0-50.67~14.04.1
  linux-image-3.16.0-50-lowlatency  3.16.0-50.67~14.04.1
  linux-image-3.16.0-50-powerpc-e500mc  3.16.0-50.67~14.04.1
  linux-image-3.16.0-50-powerpc-smp  3.16.0-50.67~14.04.1
  linux-image-3.16.0-50-powerpc64-emb  3.16.0-50.67~14.04.1
  linux-image-3.16.0-50-powerpc64-smp  3.16.0-50.67~14.04.1

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. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.

References:
  https://ubuntu.com/security/notices/USN-2764-1
  CVE-2015-7613

Package Information:
  https://launchpad.net/ubuntu/+source/linux-lts-utopic/3.16.0-50.67~14.04.1

Ubuntu 2764-1: Linux kernel (Utopic HWE) vulnerability

October 5, 2015
The system could be made to crash or run programs as an administrator.

Summary

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 LTS: linux-image-3.16.0-50-generic 3.16.0-50.67~14.04.1 linux-image-3.16.0-50-generic-lpae 3.16.0-50.67~14.04.1 linux-image-3.16.0-50-lowlatency 3.16.0-50.67~14.04.1 linux-image-3.16.0-50-powerpc-e500mc 3.16.0-50.67~14.04.1 linux-image-3.16.0-50-powerpc-smp 3.16.0-50.67~14.04.1 linux-image-3.16.0-50-powerpc64-emb 3.16.0-50.67~14.04.1 linux-image-3.16.0-50-powerpc64-smp 3.16.0-50.67~14.04.1 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. If you use linux-restricted-modules, you have to update that package as well to get modules which work with the new kernel version. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-server, linux-powerpc), a standard system upgrade will automatically perform this as well.

References

https://ubuntu.com/security/notices/USN-2764-1

CVE-2015-7613

Severity
October 05, 2015

Package Information

https://launchpad.net/ubuntu/+source/linux-lts-utopic/3.16.0-50.67~14.04.1

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