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Insecure Library Loading
Moderately critical

Sircd Reverse DNS Buffer Overflow

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Release Date:  2003-02-26    Views:  8,233

Secunia Advisory SA8153

Where:

From remote

Impact:

System access

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

No CVE references.

Description


A vulnerability in sircd can be exploited by a malicious person to compromise a vulnerable system.

The vulnerability is caused by a boundary error in the code handling reverse DNS lookups, when a user connects to the service. If the FQDN (Fully Qualified Domain Name) returned is excessively long, the allocated buffer is overflowed making it possible to execute arbitrary code on the system with the privileges of the sircd daemon.


Solution:
A fix has been included in the current CVS, which is a pre-release of the 0.5.0 tree:

Further details available to Secunia VIM customers

Provided and/or discovered by:
Knud Erik Højgaard

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: Sircd Reverse DNS Buffer Overflow

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