Ubuntu: 2077-2: Puppet regression
Posted by Benjamin D. Thomas   
Ubuntu USN-2077-1 introduced a regression in Puppet.
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Ubuntu Security Notice USN-2077-2
January 09, 2014

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

- Ubuntu 13.10
- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS

Summary:

USN-2077-1 introduced a regression in Puppet.

Software Description:
- puppet: Centralized configuration management

Details:

USN-2077-1 fixed a vulnerability in Puppet. The upstream patch introduced a
regression resulting in the default file mode being incorrect. This update
fixes the problem.

We apologize for the inconvenience.

Original advisory details:

 It was discovered that Puppet incorrectly handled temporary files. A local
 attacker could possibly use this issue to overwrite arbitrary files. In the
 default installation of Ubuntu, this should be prevented by the Yama link
 restrictions.

Update instructions:

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

Ubuntu 13.10:
  puppet-common                   3.2.4-2ubuntu2.3

Ubuntu 13.04:
  puppet-common                   2.7.18-4ubuntu1.4

Ubuntu 12.10:
  puppet-common                   2.7.18-1ubuntu1.5

Ubuntu 12.04 LTS:
  puppet-common                   2.7.11-1ubuntu2.7

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

References:
  http://www.ubuntu.com/usn/usn-2077-2
  http://www.ubuntu.com/usn/usn-2077-1
  https://launchpad.net/bugs/1267385

Package Information:
  https://launchpad.net/ubuntu/+source/puppet/3.2.4-2ubuntu2.3
  https://launchpad.net/ubuntu/+source/puppet/2.7.18-4ubuntu1.4
  https://launchpad.net/ubuntu/+source/puppet/2.7.18-1ubuntu1.5
  https://launchpad.net/ubuntu/+source/puppet/2.7.11-1ubuntu2.7