Opera < 7.50 JavaScript Engine Array Handling DoS

Medium Nessus Plugin ID 14248


An installed browser is vulnerable to a denial of service attack.


The version of Opera on the remote host is vulnerable to an issue when handling large JavaScript arrays.

In particular, it is possible to crash the browser when performing various operations on Array objects with 99999999999999999999999 or 0x23000000 elements.

The crash is due to a segmentation fault and may be indicative of an exploitable memory corruption vulnerability, possibly resulting in arbitrary code execution.


Install Opera 7.50 or later.

Plugin Details

Severity: Medium

ID: 14248

File Name: opera_large_javascript_array_vuln.nasl

Version: $Revision: 1.16 $

Type: local

Agent: windows

Family: Windows

Published: 2004/08/10

Modified: 2011/11/28

Dependencies: 21746

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: CVSS2#E:H/RL:U/RC:ND

Vulnerability Information

CPE: cpe:/a:opera:opera_browser

Required KB Items: SMB/Opera/Version

Exploit Available: true

Exploit Ease: No exploit is required

Reference Information

CVE: CVE-2004-1810

BID: 9869

OSVDB: 59439