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Security researcher Juan Pablo Lopez Yacubian reported that the default Windows font used to render the locationbar and other text fields was improperly displaying certain Unicode characters with tall line-height. In such cases the tall line-height would cause the rest of the text in the input field to be scrolled vertically out of view. An attacker could use this vulnerability to prevent a user from seeing the URL of a malicious site.
This issue has been addressed in following products: Red Hat Enterprise Linux 4 Red Hat Enterprise Linux 5 Via RHSA-2009:1430 https://rhn.redhat.com/errata/RHSA-2009-1430.html
epiphany-extensions-2.24.3-5.fc10, epiphany-2.24.3-10.fc10, Miro-2.0.5-4.fc10, ruby-gnome2-0.19.1-2.fc10, blam-1.8.5-14.fc10, evolution-rss-0.1.4-3.fc10, gecko-sharp2-0.13-12.fc10, gnome-web-photo-0.3-22.fc10, gnome-python2-extras-2.19.1-34.fc10, kazehakase-0.5.6-4.fc10.6, mozvoikko-0.9.5-14.fc10, google-gadgets-0.10.5-10.fc10, pcmanx-gtk2-0.3.8-13.fc10, mugshot-1.2.2-13.fc10, yelp-2.24.0-13.fc10, perl-Gtk2-MozEmbed-0.08-6.fc10.5, firefox-3.0.14-1.fc10, xulrunner-1.9.0.14-1.fc10 has been pushed to the Fedora 10 stable repository. If problems still persist, please make note of it in this bug report.
eclipse-3.4.2-15.fc11, epiphany-extensions-2.26.1-6.fc11, monodevelop-2.0-5.fc11, seahorse-plugins-2.26.2-5.fc11, epiphany-2.26.3-4.fc11, blam-1.8.5-14.fc11, chmsee-1.0.1-11.fc11, pcmanx-gtk2-0.3.8-8.fc11, gnome-web-photo-0.7-6.fc11, galeon-2.0.7-14.fc11, evolution-rss-0.1.4-3.fc11, gnome-python2-extras-2.25.3-7.fc11, hulahop-0.4.9-8.fc11, mozvoikko-0.9.7-0.7.rc1.fc11, google-gadgets-0.11.0-5.fc11, kazehakase-0.5.7-2.fc11, perl-Gtk2-MozEmbed-0.08-6.fc11.5, Miro-2.5.2-4.fc11, yelp-2.26.0-7.fc11, ruby-gnome2-0.19.1-2.fc11, firefox-3.5.3-1.fc11, xulrunner-1.9.1.3-1.fc11 has been pushed to the Fedora 11 stable repository. If problems still persist, please make note of it in this bug report.