Uočena je i otklonjena sigurnosna ranjivost paketa koffice koja omogućuje pokretanje proizvoljnog programskog koda te izvođenje DoS (eng. Denial of Service) napada.

==========================================================================
Ubuntu Security Notice USN-1526-1
August 09, 2012

koffice vulnerability
==========================================================================

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

- Ubuntu 11.10
- Ubuntu 11.04

Summary:

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

Software Description:
- koffice: KDE Office Suite

Details:

It was discovered that KOffice incorrectly handled certain malformed
MS Word documents. If a user or automated system were tricked into opening
a crafted MS Word file, an attacker could cause a denial of service or
execute arbitrary code with privileges of the user invoking the program.

Update instructions:

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

Ubuntu 11.10:
  koffice                         1:2.3.3-0ubuntu6.1

Ubuntu 11.04:
  koffice                         1:2.3.3-0ubuntu4.1

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

References:
  http://www.ubuntu.com/usn/usn-1526-1
  CVE-2012-3455

Package Information:
  https://launchpad.net/ubuntu/+source/koffice/1:2.3.3-0ubuntu6.1
  https://launchpad.net/ubuntu/+source/koffice/1:2.3.3-0ubuntu4.1