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Nagios Content-Length Integer Overflow Vulnerability Advisory Available in Danish 

Secunia Advisory: SA20123  
Release Date: 2006-05-16
Last Update: 2006-05-22

Critical:
Highly critical
Impact: DoS
System access
Where: From remote
Solution Status: Vendor Patch

Software:Nagios 1.x
Nagios 2.x

CVE reference:CVE-2006-2489 (Secunia mirror)

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Description:
A vulnerability has been reported in Nagios, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system.

The vulnerability is caused due to an integer overflow error within the handling of the "Content-Length" HTTP header. This can be exploited to cause a buffer overflow and may allow arbitrary code execute via a HTTP request with specially crafted value in the "Content-Length" HTTP header.

The vulnerability has been reported in the 1.x and 2.x code branches.

Solution:
Update to the fixed versions.
http://www.nagios.org/download/

Nagios 1.x:
Update to version 1.4.1.

Nagios 2.x:
Update to version 2.3.1.

Provided and/or discovered by:
The vendor credits Sean Finney and Debian.

Changelog:
2006-05-22: Added CVE reference.

Original Advisory:
http://www.nagios.org/development/changelog.php
http://www.nagios.org/development/changelog.php#1x_branch



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

4 Related Secunia Security Advisories

1. Nagios CGI Unspecified Cross-Site Scripting Vulnerability
2. Nagios Unspecified Cross-Site Scripting Vulnerability
3. Nagios Cross-Site Scripting Vulnerability
4. Nagios Content-Length Handling Buffer Overflow Vulnerability


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If you have new information regarding this Secunia advisory or a product in our database, please send it to us using either our web form or email us at vuln@secunia.com.

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