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Novell eDirectory "Connection" HTTP Header Processing Denial of Service

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Release Date:  2008-04-14    Last Update:  2008-05-06    Views:  8,472

Secunia Advisory SA29805

Where:

From local network

Impact:

DoS

Solution Status:

Vendor Patch

CVE Reference(s):

Description


A vulnerability has been reported in Novell eDirectory, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error within dhost.exe when processing "Connection" headers in a HTTP request. This can be exploited to cause dhost.exe to consume large amounts of CPU resource by e.g. sending an HTTP request containing two "Connection" headers or a "Connection" header with two values to default port 8028/TCP.

The vulnerability affects the following versions on Windows 2000/2003 systems:
* Novell eDirectory 8.8.1 and prior
* Novell eDirectory 8.7.3.9 and prior


Solution:
Update to version 8.8.2 or apply eDirectory 8.7.3 sp10.

Further details available to Secunia VIM customers

Provided and/or discovered by:
The vendor credits Nicholas Gregorie.

Original Advisory:
Novell (3829452):
http://www.novell.com/support/viewContent.do?externalId=3829452&sliceId=1

http://archives.neohapsis.com/archives/bugtraq/2008-05/0066.html

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Novell eDirectory "Connection" HTTP Header Processing Denial of Service

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