A security vulnerability in OpenOffice.org, related to GIF file processing, may allow a remote unprivileged user to execute arbitrary code on the system with the privileges of a local user running OpenOffice.org, if the local user opens a crafted GIF file provided by the remote user. GIF files can also be embedded in different kind of documents, including documents in the OpenDocument Format (ODF), the default format used by OpenOffice.org.
All versions of OpenOffice.org prior to version 3.2
There are no predictable symptoms that would indicate this issue has occurred.
To workaround the described issue, do not load documents from untrusted sources.
This issue is addressed in the following release: OpenOffice.org 3.2
OpenOffice.org acknowledges with thanks, Frank Reißner and Sebastian Apelt from siberas