USN-1622-1: Munin vulnerabilities

Ubuntu Security Notice USN-1622-1

5th November, 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 version:

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

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2012-2103, CVE-2012-3512, CVE-2012-3513