Mozilla Foundation Security Advisory 2007-22

Mozilla Foundation Security Advisory 2007-22
Title: File type confusion due to %00 in name
Impact: Low
Announced: July 17, 2007
Reporter: Ronald van den Heetkamp
Products: Firefox

Fixed in: Firefox 2.0.0.5
Description
Ronald van den Heetkamp reported that a filename URL containing %00 (encoded null) can cause Firefox to interpret the file extension differently than the underlying Windows operating system potentially leading to unsafe actions such as running a program. This is only accessible locally.

References
https://bugzilla.mozilla.org/show_bug.cgi?id=383478
CVE-2007-3285