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Insecure Library Loading
Highly critical

Citadel SMTP "makeuserkey()" Buffer Overflow Vulnerability

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Release Date:  2008-01-22    Last Update:  2008-02-04    Views:  17,849

Secunia Advisory SA28590

Where:

From remote

Impact:

System access

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


prdelka has discovered a vulnerability in Citadel, which can be exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to a boundary error within the "makeuserkey()" function in user_ops.c. This can be exploited to cause a stack-based buffer overflow via an overly long argument to the "RCPT TO" SMTP command.

Successful exploitation allows execution of arbitrary code.

The vulnerability is confirmed in version 7.10. Other versions may also be affected.


Solution:
Update to version 7.24.

Provided and/or discovered by:
prdelka. Additional information provided by Secunia Research.

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: Citadel SMTP "makeuserkey()" Buffer Overflow Vulnerability

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