Security researchers Adam Barth and Collin Jackson reported that when a file: resource is loaded via the location bar it inherits the principal of the previously loaded document. This vulnerability can potentially give the newly loaded document additional privileges to access resources that it wouldn't otherwise have, including resources in the document's parent folder.
This issue has been addressed in following products: Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 4 Via RHSA-2009:1095 https://rhn.redhat.com/errata/RHSA-2009-1095.html
firefox-3.0.11-1.fc10, xulrunner-1.9.0.11-1.fc10, epiphany-2.24.3-7.fc10, epiphany-extensions-2.24.3-2.fc10, blam-1.8.5-11.fc10, devhelp-0.22-9.fc10, galeon-2.0.7-11.fc10, gecko-sharp2-0.13-9.fc10, gnome-python2-extras-2.19.1-31.fc10, gnome-web-photo-0.3-19.fc10, google-gadgets-0.10.5-7.fc10, kazehakase-0.5.6-4.fc10.3, Miro-2.0.3-5.fc10, mozvoikko-0.9.5-11.fc10, mugshot-1.2.2-10.fc10, pcmanx-gtk2-0.3.8-10.fc10, perl-Gtk2-MozEmbed-0.08-6.fc10.2, ruby-gnome2-0.18.1-5.fc10.3, yelp-2.24.0-10.fc10 has been pushed to the Fedora 10 stable repository. If problems still persist, please make note of it in this bug report.
firefox-3.0.11-1.fc9, xulrunner-1.9.0.11-1.fc9, epiphany-2.22.2-12.fc9, epiphany-extensions-2.22.1-12.fc9, blam-1.8.5-10.fc9.1, chmsee-1.0.1-13.fc9, devhelp-0.19.1-13.fc9, evolution-rss-0.1.0-12.fc9, galeon-2.0.7-11.fc9, gnome-python2-extras-2.19.1-28.fc9, gnome-web-photo-0.3-22.fc9, google-gadgets-0.10.5-7.fc9, gtkmozembedmm-1.4.2.cvs20060817-30.fc9, kazehakase-0.5.6-4.fc9.3, Miro-2.0.3-5.fc9, mozvoikko-0.9.5-11.fc9, mugshot-1.2.2-10.fc9, ruby-gnome2-0.17.0-10.fc9, totem-2.23.2-17.fc9, yelp-2.22.1-13.fc9 has been pushed to the Fedora 9 stable repository. If problems still persist, please make note of it in this bug report.