Mozilla Suite/Firefox Security Advisory
Security Advisory (September 9, 2005) The Mozilla Foundation is aware of a potentially critical security vulnerability in Mozilla and Firefox browsers’ support for IDN, as reported publicly on September 8. There are currently no known active exploits of this vulnerability although a “proof of concept” has been reported. To protect yourself against this exploit, follow these instructions.
Source: Mozilla Foundation Security Center
Source: What Firefox and Mozilla users should know about the IDN buffer overflow security issue

