Calligra could be made to crash or run programs as your login if it opened a specially crafted file.
It was discovered that Calligra 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.
9 August 2012
A security issue affects these releases of Ubuntu and its derivatives:
Calligra could be made to crash or run programs as your login if it opened a specially crafted file.
It was discovered that Calligra 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.
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart Calligra to make all the necessary changes.
Vulmon