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HistoryJul 22, 2009 - 12:00 a.m.

Mozilla Foundation Security Advisory 2009-35

2009-07-2200:00:00
vulners.com
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Mozilla Foundation Security Advisory 2009-35

Title: Crash and remote code execution during Flash player unloading
Impact: Critical
Announced: July 21, 2009
Reporter: Attila Suszter
Products: Firefox

Fixed in: Firefox 3.5.1
Firefox 3.0.12
Description

Security researcher Attila Suszter reported that when a page contains a Flash object which presents a slow script dialog, and the page is navigated while the dialog is still visible to the user, the Flash plugin is unloaded resulting in a crash due to a call to the deleted object. This crash could potentially be used by an attacker to run arbitrary code on a victim's computer.
References

* https://bugzilla.mozilla.org/show_bug.cgi?id=493601
* CVE-2009-2467