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Ubuntu 12.04 LTS USN-3207-2 Moderate: Multiple Kernel Issues

ubuntu
Calendar Grey February 22, 2017
Dist Ubuntu Esm H88
Ubuntu 12.04 LTS users facing kernel issues can resolve them by updating to the latest Linux-LTS-Trusty kernel using clear, step-by-step instructions
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux-lts-trusty: Linux hardware enablement kernel from Trusty for Precise

Details:

USN-3207-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04

LTS. This update provides the corresponding updates for the Linux

Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu

12.04 LTS.

It was discovered that a use-after-free vulnerability existed in the block

device layer of the Linux kernel. A local attacker could use this to cause

a denial of service (system crash) or possibly gain administrative

privileges. (CVE-2016-7910)

Dmitry Vyukov discovered a use-after-free vulnerability in the

sys_ioprio_get() function in the Linux kernel. A local attacker could use

this to cause a denial of service (system crash) or possibly gain

administrative privileges. (CVE-2016-7911)

Andrey Konovalov discovered a use-after-free vulnerability in the DCCP

implementation in the Linux kernel. A local attacker coul...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory moderate denial service kernel ubuntu system crash

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.04 LTS:
  linux-image-3.13.0-110-generic  3.13.0-110.157~precise1
  linux-image-3.13.0-110-generic-lpae  3.13.0-110.157~precise1
  linux-image-generic-lpae-lts-trusty  3.13.0.110.101
  linux-image-generic-lts-trusty  3.13.0.110.101

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

https://ubuntu.com/security/notices/USN-3207-2

https://ubuntu.com/security/notices/USN-3207-1

CVE-2016-7910, CVE-2016-7911, CVE-2017-6074

February 22, 2017

Topics%20covered

Topics Covered

security advisory moderate denial service kernel ubuntu system crash

Package Information

https://launchpad.net/ubuntu/+source/linux-lts-trusty/3.13.0-110.157~precise1

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