USN-2230-1: chkrootkit vulnerability

4 June 2014

chkrootkit vulnerability

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

  • Ubuntu 14.04 LTS
  • Ubuntu 13.10
  • Ubuntu 12.04 LTS
  • Ubuntu 10.04 LTS


chkrootkit could be made to run programs as an administrator.

Software Description

  • chkrootkit - rootkit detector


Thomas Stangner discovered that chkrootkit incorrectly quoted certain values. A local attacker could use this issue to execute arbitrary code when chkrootkit is run and gain root privileges.

Update instructions

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

Ubuntu 14.04 LTS
chkrootkit - 0.49-4.1ubuntu1.14.04.1
Ubuntu 13.10
chkrootkit - 0.49-4.1ubuntu1.13.10.1
Ubuntu 12.04 LTS
chkrootkit - 0.49-4ubuntu1.1
Ubuntu 10.04 LTS
chkrootkit - 0.49-3ubuntu0.1

To update your system, please follow these instructions:

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