Mozilla Firefox before 3.0.7, Thunderbird before 2.0.0.21, and SeaMonkey before 1.1.15 decode invisible characters when they are displayed in the location bar, which causes an incorrect address to be displayed and makes it easier for remote attackers to spoof URLs and conduct phishing attacks.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7435
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6229
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6157
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6039
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11222
https://exchange.xforce.ibmcloud.com/vulnerabilities/49087
https://bugzilla.mozilla.org/show_bug.cgi?id=452979
http://www.vupen.com/english/advisories/2009/0632
http://www.securityfocus.com/bid/33990
http://www.redhat.com/support/errata/RHSA-2009-0315.html
http://www.mozilla.org/security/announce/2009/mfsa2009-11.html
http://www.mandriva.com/security/advisories?name=MDVSA-2009:075
http://support.avaya.com/elmodocs2/security/ASA-2009-069.htm
http://securitytracker.com/alerts/2009/Mar/1021799.html
http://secunia.com/advisories/34272
http://secunia.com/advisories/34145
http://secunia.com/advisories/34140
http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00002.html