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Ubuntu 14.04 LTS USN-3149-1 Moderate: Kernel Crash Risk Details

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Calendar Grey December 6, 2016
Scroller Ubuntu
Ubuntu 14.04 LTS patch resolves a kernel vulnerability that could lead to system instability or unauthorized access.
The system could be made to crash or run programs as an administrator.

Summary

The system could be made to crash or run programs as an administrator.

Software Description:

- linux: Linux kernel

Details:

Philip Pettersson discovered a race condition in the af_packet

implementation in the Linux kernel. A local unprivileged attacker could use

this to cause a denial of service (system crash) or run arbitrary code with

administrative privileges.

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu system crash administrative access linux kernel

Update Instructions

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

Ubuntu 14.04 LTS:
  linux-image-3.13.0-105-generic  3.13.0-105.152
  linux-image-3.13.0-105-generic-lpae  3.13.0-105.152
  linux-image-3.13.0-105-lowlatency  3.13.0-105.152
  linux-image-3.13.0-105-powerpc-e500  3.13.0-105.152
  linux-image-3.13.0-105-powerpc-e500mc  3.13.0-105.152
  linux-image-3.13.0-105-powerpc-smp  3.13.0-105.152
  linux-image-3.13.0-105-powerpc64-emb  3.13.0-105.152
  linux-image-3.13.0-105-powerpc64-smp  3.13.0-105.152
  linux-image-generic             3.13.0.105.113
  linux-image-generic-lpae        3.13.0.105.113
  linux-image-lowlatency          3.13.0.105.113
  linux-image-powerpc-e500        3.13.0.105.113
  linux-image-powerpc-e500mc      3.13.0.105.113
  linux-image-powerpc-smp         3.13.0.105.113
  linux-image-powerpc64-emb       3.13.0.105.113
  linux-image-powerpc64-smp       3.13.0.105.113

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-2016-8655

December 05, 2016

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu system crash administrative access linux kernel

Package Information

https://launchpad.net/ubuntu/+source/linux/3.13.0-105.152

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