WebKit Floating Point Number Remote Buffer Overflow Vulnerability

BID:36023

Info

WebKit Floating Point Number Remote Buffer Overflow Vulnerability

Bugtraq ID: 36023
Class: Boundary Condition Error
CVE: CVE-2009-2195
Remote: Yes
Local: No
Published: Aug 11 2009 12:00AM
Updated: Jun 21 2010 10:28PM
Credit: Apple
Vulnerable: Apple Safari 4.0.2 for Windows
Apple Safari 4.0.2
Apple Safari 4.0.1
Apple Safari 3.2.3 for Windows
Apple Safari 3.2.3
Apple Safari 3.2.2 for Windows
Apple Safari 3.1.2 for Windows
Apple Safari 3.1.2
Apple Safari 3.1.1 for Windows
Apple Safari 3.1.1
Apple Safari 3.0.4 Beta for Windows
Apple Safari 3.0.3 Beta for Windows
Apple Safari 3.0.3 Beta
Apple Safari 3.0.2 Beta for Windows
Apple Safari 3.0.2 Beta
Apple Safari 3.0.1 Beta for Windows
Apple Safari 3.0.1 Beta
Apple Safari 4 for Windows
Apple Safari 4 Beta
Apple Safari 4
Apple Safari 3.2
Apple Safari 3.1 for Windows
Apple Safari 3.1
Apple Safari 3 Beta for Windows
Apple Safari 3 Beta
Apple Safari 3
Apple iPod Touch 3.1.3
Apple iPod Touch 3.1.2
Apple iPod Touch 3.1.1
Apple iPod Touch 2.2.1
Apple iPod Touch 2.0.2
Apple iPod Touch 2.0.1
Apple iPod Touch 3.0
Apple iPod Touch 2.2
Apple iPod Touch 2.1
Apple iPod Touch 2.0
Apple iPhone 3.1.3
Apple iPhone 3.1.2
Apple iPhone 3.0.1
Apple iPhone 2.2.1
Apple iPhone 2.0.2
Apple iPhone 2.0.1
Apple iPhone 3.1
Apple iPhone 3.0
Apple iPhone 2.2
Apple iPhone 2.1
Apple iPhone 2.0
Not Vulnerable: Apple Safari 4.0.3 for Windows
Apple Safari 4.0.3
Apple iOS 4

Discussion

WebKit Floating Point Number Remote Buffer Overflow Vulnerability

WebKit is prone to a remote buffer-overflow vulnerability.

An attacker can exploit this issue to execute arbitrary code in the context of the application. Failed exploit attempts will result in a denial-of-service condition.

Versions prior to Apple Safari 4.0.3 are vulnerable; other applications using WebKit may also be affected.

Exploit / POC

WebKit Floating Point Number Remote Buffer Overflow Vulnerability

The following proofs of concept are available:

Example 1:
---------
<script>
var Overflow = "31337" + 0.313373133731337313373133731337...;
</script>
---------

Example 2:
---------
<img width=0.3133731337313373133731337... src="31337.jpg">
---------

Solution / Fix

WebKit Floating Point Number Remote Buffer Overflow Vulnerability

Solution:
Updates are available. Please see the references for more information.


Apple Safari 4.0.2 for Windows

Apple Safari 4.0.2

References

WebKit Floating Point Number Remote Buffer Overflow Vulnerability

References:

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