Mozilla security researcher Georgi Guninski reported that when a SVG document which is served with Content-Type: application/octet-stream is embedded into another document via an <embed> tag with type="image/svg+xml", the Content-Type is ignored and the SVG document is processed normally. A website which allows arbitrary binary data to be uploaded but which relies on Content-Type: application/octet-stream to prevent script execution could have such protection bypassed. An attacker could upload a SVG document containing JavaScript as a binary file to a website, embed the SVG document into a malicous page on another site, and gain access to the script environment from the SVG-serving site, bypassing the same-origin policy.
http://www.mozilla.org/security/announce/2010/mfsa2010-05.html
This issue has been addressed in following products: Red Hat Enterprise Linux 4 Red Hat Enterprise Linux 5 Via RHSA-2010:0112 https://rhn.redhat.com/errata/RHSA-2010-0112.html
firefox-3.5.8-1.fc12,xulrunner-1.9.1.8-1.fc12 has been submitted as an update for Fedora 12. http://admin.fedoraproject.org/updates/firefox-3.5.8-1.fc12,xulrunner-1.9.1.8-1.fc12
gnome-python2-extras-2.25.3-16.fc12,perl-Gtk2-MozEmbed-0.08-6.fc12.11,blam-1.8.5-22.fc12,gnome-web-photo-0.9-5.fc12,mozvoikko-1.0-8.fc12,firefox-3.5.8-1.fc12,xulrunner-1.9.1.8-1.fc12 has been submitted as an update for Fedora 12. http://admin.fedoraproject.org/updates/gnome-python2-extras-2.25.3-16.fc12,perl-Gtk2-MozEmbed-0.08-6.fc12.11,blam-1.8.5-22.fc12,gnome-web-photo-0.9-5.fc12,mozvoikko-1.0-8.fc12,firefox-3.5.8-1.fc12,xulrunner-1.9.1.8-1.fc12
galeon-2.0.7-20.fc12,gnome-python2-extras-2.25.3-16.fc12,perl-Gtk2-MozEmbed-0.08-6.fc12.11,blam-1.8.5-22.fc12,gnome-web-photo-0.9-5.fc12,mozvoikko-1.0-8.fc12,firefox-3.5.8-1.fc12,xulrunner-1.9.1.8-1.fc12 has been submitted as an update for Fedora 12. http://admin.fedoraproject.org/updates/galeon-2.0.7-20.fc12,gnome-python2-extras-2.25.3-16.fc12,perl-Gtk2-MozEmbed-0.08-6.fc12.11,blam-1.8.5-22.fc12,gnome-web-photo-0.9-5.fc12,mozvoikko-1.0-8.fc12,firefox-3.5.8-1.fc12,xulrunner-1.9.1.8-1.fc12
chmsee-1.0.1-15.fc11,epiphany-2.26.3-8.fc11,blam-1.8.5-18.fc11,pcmanx-gtk2-0.3.9-2.20100210svn.fc11,galeon-2.0.7-20.fc11,hulahop-0.4.9-12.fc11,eclipse-3.4.2-20.fc11,evolution-rss-0.1.4-10.fc11,gnome-web-photo-0.7-10.fc11,gnome-python2-extras-2.25.3-11.fc11,monodevelop-2.0-9.fc11,Miro-2.5.4-2.fc11,kazehakase-0.5.8-5.fc11,mozvoikko-0.9.7-0.11.rc1.fc11,google-gadgets-0.11.1-5.fc11,perl-Gtk2-MozEmbed-0.08-6.fc11.9,ruby-gnome2-0.19.3-6.fc11,yelp-2.26.0-11.fc11,epiphany-extensions-2.26.1-10.fc11,firefox-3.5.8-1.fc11,xulrunner-1.9.1.8-1.fc11 has been submitted as an update for Fedora 11. http://admin.fedoraproject.org/updates/chmsee-1.0.1-15.fc11,epiphany-2.26.3-8.fc11,blam-1.8.5-18.fc11,pcmanx-gtk2-0.3.9-2.20100210svn.fc11,galeon-2.0.7-20.fc11,hulahop-0.4.9-12.fc11,eclipse-3.4.2-20.fc11,evolution-rss-0.1.4-10.fc11,gnome-web-photo-0.7-10.fc11,gnome-python2-extras-2.25.3-11.fc11,monodevelop-2.0-9.fc11,Miro-2.5.4-2.fc11,kazehakase-0.5.8-5.fc11,mozvoikko-0.9.7-0.11.rc1.fc11,google-gadgets-0.11.1-5.fc11,perl-Gtk2-MozEmbed-0.08-6.fc11.9,ruby-gnome2-0.19.3-6.fc11,yelp-2.26.0-11.fc11,epiphany-extensions-2.26.1-10.fc11,firefox-3.5.8-1.fc11,xulrunner-1.9.1.8-1.fc11
seamonkey-2.0.3-1.fc12 has been pushed to the Fedora 12 stable repository. If problems still persist, please make note of it in this bug report.
firefox-3.5.8-1.fc11, xulrunner-1.9.1.8-1.fc11, chmsee-1.0.1-15.fc11, epiphany-2.26.3-8.fc11, blam-1.8.5-18.fc11, pcmanx-gtk2-0.3.9-2.20100210svn.fc11, galeon-2.0.7-20.fc11, hulahop-0.4.9-12.fc11, eclipse-3.4.2-20.fc11, evolution-rss-0.1.4-10.fc11, gnome-web-photo-0.7-10.fc11, gnome-python2-extras-2.25.3-11.fc11, monodevelop-2.0-9.fc11, Miro-2.5.4-2.fc11, kazehakase-0.5.8-5.fc11, mozvoikko-0.9.7-0.11.rc1.fc11, google-gadgets-0.11.1-5.fc11, perl-Gtk2-MozEmbed-0.08-6.fc11.9, ruby-gnome2-0.19.3-6.fc11, yelp-2.26.0-11.fc11, epiphany-extensions-2.26.1-10.fc11 has been pushed to the Fedora 11 stable repository. If problems still persist, please make note of it in this bug report.
firefox-3.5.8-1.fc12, xulrunner-1.9.1.8-1.fc12, gnome-python2-extras-2.25.3-16.fc12, perl-Gtk2-MozEmbed-0.08-6.fc12.11, blam-1.8.5-22.fc12, gnome-web-photo-0.9-5.fc12, mozvoikko-1.0-8.fc12, galeon-2.0.7-20.fc12 has been pushed to the Fedora 12 stable repository. If problems still persist, please make note of it in this bug report.