[USN-3132-1] tar vulnerability

[Marc Deslauriers]

==========================================================================
Ubuntu Security Notice USN-3132-1
November 21, 2016

tar vulnerability
==========================================================================

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

- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

tar could be made to overwrite files.

Software Description:
- tar: GNU version of the tar archiving utility

Details:

Harry Sintonen discovered that tar incorrectly handled extracting files
when path names are specified on the command line. If a user or automated
system were tricked into processing a specially crafted archive, an
attacker could possibly overwrite arbitrary files.

Update instructions:

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

Ubuntu 16.10:
  tar                             1.29b-1ubuntu0.1

Ubuntu 16.04 LTS:
  tar                             1.28-2.1ubuntu0.1

Ubuntu 14.04 LTS:
  tar                             1.27.1-1ubuntu0.1

Ubuntu 12.04 LTS:
  tar                             1.26-4ubuntu1.1

In general, a standard system update will make all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-3132-1
  CVE-2016-6321

Package Information:
  https://launchpad.net/ubuntu/+source/tar/1.29b-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/tar/1.28-2.1ubuntu0.1
  https://launchpad.net/ubuntu/+source/tar/1.27.1-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/tar/1.26-4ubuntu1.1


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