USN-1536-1: LibreOffice vulnerability

Ubuntu Security Notice USN-1536-1

13th August, 2012

libreoffice vulnerability

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

  • Ubuntu 12.04 LTS
  • Ubuntu 11.10
  • Ubuntu 11.04


LibreOffice could be made to crash or run programs as your login if it opened a specially crafted file.

Software description

  • libreoffice - Office productivity suite


It was discovered that LibreOffice incorrectly handled certain encryption
tags in Open Document Text (.odt) files. If a user were tricked into
opening a specially crafted file, an attacker could cause LibreOffice to
crash or possibly execute arbitrary code with the privileges of the user
invoking the program.

Update instructions

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

Ubuntu 12.04 LTS:
libreoffice-core 1:3.5.4-0ubuntu1.1
Ubuntu 11.10:
libreoffice-core 1:3.4.4-0ubuntu1.4
Ubuntu 11.04:
libreoffice-core 1:3.3.4-0ubuntu1.4

To update your system, please follow these instructions:

After a standard system update you need to restart LibreOffice to make all
the necessary changes.