It was found that indexes into the bookmark array were insufficiently checked for validity. A document can be constructed which refers to bookmarks that don't exist, causing memory corruption.
Products affected are LibreOffice < 4.4.6 and OpenOffice <= 4.1.1.
Created libreoffice tracking bugs for this issue:
Affects: fedora-all [bug 1278829]
This issue has been addressed in the following products:
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Via RHSA-2015:2619 https://rhn.redhat.com/errata/RHSA-2015-2619.html