Opera < 7.21 HREF Escaped Character Overflow

High Nessus Plugin ID 11900


The remote host has an application that is affected by a buffer overflow vulnerability.


The installed version of Opera on the remote host is vulnerable to a buffer overflow in the code that parses HREF tags in the server.

To exploit them, an attacker would need to set up a rogue website, then lure a user of this host to visit the site using Opera.
The attacker would then be able to execute arbitrary code on this host.


Install Opera 7.21 or newer.

See Also


Plugin Details

Severity: High

ID: 11900

File Name: opera_href_overflow.nasl

Version: $Revision: 1.18 $

Type: local

Agent: windows

Family: Windows

Published: 2003/10/20

Modified: 2014/04/25

Dependencies: 21746

Risk Information

Risk Factor: High


Base Score: 9.3

Temporal Score: 6.9

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:opera:opera_browser

Required KB Items: SMB/Opera/Version

Exploit Available: false

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 2003/10/20

Reference Information

CVE: CVE-2003-0870

BID: 8853

OSVDB: 6273