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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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