Mozilla Firefox allows spoofed content association. A flaw was found in the way Firefox displayed blank pages after a user navigates to an invalid address. If a user visits an attacker-controlled web page that results in a blank page, the attacker could inject content into that blank page, possibly tricking the user into believing they are viewing a legitimate page.
secunia.com/advisories/37699
secunia.com/advisories/37704
secunia.com/advisories/37785
secunia.com/advisories/37813
secunia.com/advisories/37856
secunia.com/advisories/37881
securitytracker.com/id?1023342
securitytracker.com/id?1023343
www.debian.org/security/2009/dsa-1956
www.mozilla.org/security/announce/2009/mfsa2009-69.html
www.mozilla.org/security/known-vulnerabilities/firefox30.html#firefox3.0.16
www.novell.com/linux/security/advisories/2009_63_firefox.html
www.redhat.com/security/updates/classification/#critical
www.securityfocus.com/bid/37349
www.securityfocus.com/bid/37370
www.ubuntu.com/usn/USN-873-1
www.ubuntu.com/usn/USN-874-1
www.vupen.com/english/advisories/2009/3547
access.redhat.com/errata/RHSA-2009:1674
bugzilla.mozilla.org/show_bug.cgi?id=514232
bugzilla.redhat.com/show_bug.cgi?id=546726
exchange.xforce.ibmcloud.com/vulnerabilities/54808
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8480
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9911
rhn.redhat.com/errata/RHSA-2009-1674.html
www.redhat.com/archives/fedora-package-announce/2009-December/msg00995.html
www.redhat.com/archives/fedora-package-announce/2009-December/msg01034.html
www.redhat.com/archives/fedora-package-announce/2009-December/msg01041.html