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Apple Mac OS X Safari 2.0.3 Vulnerability
From: Yannick von Arx <yannick.vonarx () yanux ch>
Date: Mon, 24 Apr 2006 20:13:31 +0200

Apple Mac OS X Safari 2.0.3 Vulnerability
=========================================

Release Date:
April 23th, 2006

Vendor:
Apple Computer Inc.

Tested on:
iBook G4 1.2 GHz with Mac OS X 10.4.5 (Build 8H14) + all Updates from Apple except "10.4.6 Update" iBook G4 1.33 GHz with Mac OS X 10.4.6 (Build 8I127) + all Updates from Apple PowerMac G4 Dual 867 MHz with Mac OS X 10.4.6 (Build 8I127) + all Updates from Apple iMac G4 800 MHz with Mac OS X 10.4.6 (Build 8I127) + all Updates from Apple

Versions affected:
Safari 2.0.3 (417.9.2) latest version under 10.4.5 (Build 8H14) and perhaps prior versions Safari 2.0.3 (417.9.2) latest version under 10.4.6 (Build 8I127) and perhaps prior versions

Overview:
A vulnerabilitiy exists in Safari 2.0.3 (417.9.2) and perhaps in prior versions which causes the operating system to slow down SRCOD (Spinning Rainbow Cursor Of Death), and therefore, it's not possible to launch any applications like Terminal to kill the process. After several minutes Safari crashes.

Technical Details:
Create a new File with following code ...

<HTML>
<TABLE>
<TR><TD ROWSPAN=2000000000>

... then save it as a .html file (example.html) now open it in Safari. The application takes a lot of CPU and RAM slowing down the operating system SRCOD (Spinning Rainbow Cursor Of Death), and it is no longer possible to use OSX even "apple" + "ALT" + "ESC" is working very slow! Go around and pull the power cable out or press the startbutton for a while to shut down the computer.

For an expample klick at the link with Safari (WARNING: That crashes Safari after several minutes an first the SRCOD (Spinning Rainbow Cursor Of Death) is there for all the time!) http://www.yanux.ch/ exploits/safari/example.html

Report:
iMac G4 800 MHz with Mac OS X 10.4.6 (Build 8I127) + all Updates from Apple
http://www.yanux.ch/exploits/safari/bugreport_imac_g4.txt

Vendor Status:
Apple has notified of this issues on 04/23/2006

Solution:
Currently no patches have been released for this vulnerability.

Discovered by:
Yannick von Arx
yannick[dot]vonarx[at]yanux[dot]ch

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