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freeSSHd Two Denial of Service Vulnerabilities

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Release Date:  2008-10-23    Last Update:  2009-03-30    Views:  5,981

Secunia Advisory SA32366

Where:

From remote

Impact:

DoS

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

No CVE references.

Description


Jeremy Brown has discovered two vulnerabilities in freeSSHd, which can be exploited by malicious users to cause a DoS (Denial of Service).

The vulnerabilities are caused due to NULL-pointer dereference errors in the processing of the SFTP "rename" and "realpath" commands. These can be exploited to crash a freeSSHd server via an overly long string passed as an argument to the affected commands.

The vulnerabilities are confirmed in version 1.2.1.14. Other versions may also be affected.


Solution:
Update to version 1.2.3.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Jeremy Brown

Original Advisory:
http://milw0rm.com/exploits/6800
http://milw0rm.com/exploits/6812

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: freeSSHd Two Denial of Service Vulnerabilities

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