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Alerts This Week
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Ubuntu 11.04 USN-1238-2 Critical: Puppet Regression Resolution

ubuntu
Calendar Grey October 25, 2011
Scroller Ubuntu
This notice outlines an issue with the puppet software impacting Ubuntu 11.04 and includes crucial patches.
USN-1238-1 caused a regression on Ubuntu 11.04.

Summary

USN-1238-1 caused a regression on Ubuntu 11.04.

Software Description:

- puppet: Centralized configuration management

Details:

USN-1238-1 fixed vulnerabilities in Puppet. The upstream patch introduced a

regression in Ubuntu 11.04 when executing certain commands. This update

fixes the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that Puppet incorrectly handled the non-default

"certdnsnames" option when generating certificates. If this setting was

added to puppet.conf, the puppet master’s DNS alt names were added to the

X.509 Subject Alternative Name field of all certificates, not just the

puppet master’s certificate. An attacker that has an incorrect agent

certificate in his possession can use it to impersonate the puppet master

in a man-in-the-middle attack.

Topics%20covered

Topics Covered

security advisory security update ubuntu regression issue puppet

Update Instructions

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

Ubuntu 11.04:
  puppet-common                   2.6.4-2ubuntu2.6

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

References

https://ubuntu.com/security/notices/USN-1238-2

https://ubuntu.com/security/notices/USN-1238-1

https://bugs.launchpad.net/ubuntu/+source/puppet/+bug/881361

Severity
critical
Lowest
Low
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Critical

October 25, 2011

Topics%20covered

Topics Covered

security advisory security update ubuntu regression issue puppet

Package Information

https://launchpad.net/ubuntu/+source/puppet/2.6.4-2ubuntu2.6

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