Opera < 7.54.0 Empty CCCC Object JavaScript-based DoS

Medium Nessus Network Monitor Plugin ID 2259

Synopsis

The remote host is vulnerable to a Denial of Service (DoS) attack.

Description

The remote host is using a version of Opera that is affected by a security weakness that may permit an attacker to crash the remote web browser by using JavaScript. Specifically, processing an empty 'CCCC' object generated using JavaScript causes Opera to crash.

Solution

Install Opera 7.54.0 or higher.

Plugin Details

Severity: Medium

ID: 2259

Family: Web Clients

Published: 2004/09/03

Modified: 2016/12/06

Dependencies: 1735, 8314

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 5.4

Temporal Score: 4.7

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

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

CVSSv3

Base Score: 5.8

Temporal Score: 5.5

Vector: CVSS3#AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS3#E:H/RL:O/RC:X

Vulnerability Information

CPE: cpe:/a:opera:opera_browser

Reference Information

BID: 11090