USN-1955-1: apt-xapian-index vulnerability

Ubuntu Security Notice USN-1955-1

18th September, 2013

apt-xapian-index vulnerability

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

  • Ubuntu 13.04
  • Ubuntu 12.10
  • Ubuntu 12.04 LTS


apt-xapian-index could be tricked into bypassing polkit authorizations.

Software description

  • apt-xapian-index - maintenance and search tools for a Xapian index of Debian package


It was discovered that apt-xapian-index was using polkit in an unsafe
manner. A local attacker could possibly use this issue to bypass intended
polkit authorizations.

Update instructions

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

Ubuntu 13.04:
apt-xapian-index 0.45ubuntu2.1
Ubuntu 12.10:
apt-xapian-index 0.44ubuntu7.1
Ubuntu 12.04 LTS:
apt-xapian-index 0.44ubuntu5.1

To update your system, please follow these instructions:

After a standard system update you need to reboot your computer to make
all the necessary changes.