Apple Safari Large JavaScript Array Handling Denial Of Service Vulnerability

BID:9815

Info

Apple Safari Large JavaScript Array Handling Denial Of Service Vulnerability

Bugtraq ID: 9815
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2004-0361
Remote: Yes
Local: No
Published: Mar 06 2004 12:00AM
Updated: Jul 12 2009 03:06AM
Credit: Discovery is credited to kang <[email protected]>.
Vulnerable: Apple Safari 1.1
Apple Safari 1.0
+ Apple Mac OS X 10.2.8
+ Apple Mac OS X 10.2.8
+ Apple Mac OS X 10.2.7
+ Apple Mac OS X 10.2.7
+ Apple Mac OS X 10.2.6
+ Apple Mac OS X 10.2.6
+ Apple Mac OS X 10.2.5
+ Apple Mac OS X 10.2.5
+ Apple Mac OS X 10.2.4
+ Apple Mac OS X 10.2.4
+ Apple Mac OS X 10.2.3
+ Apple Mac OS X 10.2.3
+ Apple Mac OS X 10.2.2
+ Apple Mac OS X 10.2.2
+ Apple Mac OS X 10.2.1
+ Apple Mac OS X 10.2.1
+ Apple Mac OS X 10.2
+ Apple Mac OS X 10.2
+ Apple Mac OS X Server 10.2.8
+ Apple Mac OS X Server 10.2.7
+ Apple Mac OS X Server 10.2.7
+ Apple Mac OS X Server 10.2.6
+ Apple Mac OS X Server 10.2.6
+ Apple Mac OS X Server 10.2.5
+ Apple Mac OS X Server 10.2.5
+ Apple Mac OS X Server 10.2.4
+ Apple Mac OS X Server 10.2.4
+ Apple Mac OS X Server 10.2.3
+ Apple Mac OS X Server 10.2.3
+ Apple Mac OS X Server 10.2.2
+ Apple Mac OS X Server 10.2.2
+ Apple Mac OS X Server 10.2.1
+ Apple Mac OS X Server 10.2.1
+ Apple Mac OS X Server 10.2
+ Apple Mac OS X Server 10.2
Apple Safari Beta 2
Apple Mac OS X Server 10.3.5
Apple Mac OS X Server 10.3.4
Apple Mac OS X Server 10.2.8
Apple Mac OS X 10.3.5
Apple Mac OS X 10.3.4
Apple Mac OS X 10.2.8
Not Vulnerable:

Discussion

Apple Safari Large JavaScript Array Handling Denial Of Service Vulnerability

Apple Safari Web Browser is reported to be prone to a security vulnerability related to handling of large JavaScript arrays (with 99999999999999999999999 or 0x23000000 elements). By declaring such an array and then attempting to access it, it may be possible to cause a browser crash.

This issue is likely due to memory corruption but it is not known if it could be further exploitable to execute arbitrary code.

Exploit / POC

Apple Safari Large JavaScript Array Handling Denial Of Service Vulnerability

The following examples were provided:
var a = new Array(99999999999999999999999);
a[0+5]="AAAAA";

and:
var bam = new Array(0x23000000);
bam.sort(new Function("return 1"));

Solution / Fix

Apple Safari Large JavaScript Array Handling Denial Of Service Vulnerability

Solution:
Apple has released an advisory (APPLE-SA-0024-09-07) along with fixes to address this, and many other issues. Please see the referenced advisory for further information.


Apple Mac OS X 10.2.8

Apple Mac OS X Server 10.2.8

Apple Mac OS X 10.3.4

Apple Mac OS X Server 10.3.4

Apple Mac OS X 10.3.5

Apple Mac OS X Server 10.3.5

References

Apple Safari Large JavaScript Array Handling Denial Of Service Vulnerability

References:
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