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Ubuntu: Security update for Munin

It was discovered that the Munin qmailscan plugin incorrectly handled temporary files. A local attacker could use this issue to possibly overwrite arbitrary files. It was discovered that Munin incorrectly handled plugin state file permissions. An attacker obtaining privileges of the munin user could use this issue to escalate privileges to root. It was discovered that Munin incorrectly handled specifying an alternate configuration file. A remote attacker could possibly use this issue to execute arbitrary code with the privileges of the web server.

Updated packages are available from security.ubuntu.com.

==========================================================================
Ubuntu Security Notice USN-1622-1
November 05, 2012

munin vulnerabilities
==========================================================================

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

- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in Munin.

Software Description:
- munin: Network-wide graphing framework

Details:

It was discovered that the Munin qmailscan plugin incorrectly handled
temporary files. A local attacker could use this issue to possibly
overwrite arbitrary files. This issue only affected Ubuntu 10.04 LTS,
Ubuntu 11.10, and Ubuntu 12.04 LTS. (CVE-2012-2103)

It was discovered that Munin incorrectly handled plugin state file
permissions. An attacker obtaining privileges of the munin user could use
this issue to escalate privileges to root. (CVE-2012-3512)

It was discovered that Munin incorrectly handled specifying an alternate
configuration file. A remote attacker could possibly use this issue to
execute arbitrary code with the privileges of the web server. This issue
only affected Ubuntu 12.10. (CVE-2012-3513)

Update instructions:

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

Ubuntu 12.10:
 munin                           2.0.2-1ubuntu2.2

Ubuntu 12.04 LTS:
 munin                           1.4.6-3ubuntu3.3

Ubuntu 11.10:
 munin                           1.4.5-3ubuntu4.11.10.2

Ubuntu 10.04 LTS:
 munin                           1.4.4-1ubuntu1.2

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

References:
 http://www.ubuntu.com/usn/usn-1622-1
 CVE-2012-2103, CVE-2012-3512, CVE-2012-3513

Package Information:
 https://launchpad.net/ubuntu/+source/munin/2.0.2-1ubuntu2.2
 https://launchpad.net/ubuntu/+source/munin/1.4.6-3ubuntu3.3
 https://launchpad.net/ubuntu/+source/munin/1.4.5-3ubuntu4.11.10.2
 https://launchpad.net/ubuntu/+source/munin/1.4.4-1ubuntu1.2
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