USN-3132-1: tar vulnerability

Ubuntu Security Notice USN-3132-1

21st November, 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 version:

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

To update your system, please follow these instructions: http://ift.tt/17VXqjU.

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

References

CVE-2016-6321

from Ubuntu Security Notices http://ift.tt/2ga2fxo