Mozilla Foundation Security Advisory 2012-41
Title: Use-after-free in nsHTMLSelectElement
Announced: June 18, 2012
Products: Firefox, Thunderbird, SeaMonkey
Fixed in: Firefox 9.0
Security researcher regenrecht reported a flaw that affected Firefox versions 4 through 8 via TippingPoint's Zero Day Initiative. This flaw is a use-after-free in nsHTMLSelectElement when the parent node of the element is no longer active and could allow for possible remote code execution.
Firefox 3.6 is not affected by this vulnerability.