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Moderately critical

MailEnable SMTP Service Two Denial of Service Vulnerabilities

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Release Date:  2010-09-13    Views:  2,540

Secunia Advisory SA41175

Where:

From remote

Impact:

DoS

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Secunia Research has discovered two vulnerabilities in MailEnable, which can be exploited by malicious people to cause a DoS (Denial of Service).

1) An insufficient length check when appending data to a predefined log message into a buffer using strcat_s() may result in an unhandled invalid parameter error. This can be exploited to crash the SMTP service (MESMTPC.exe) via an overly long email address in the "MAIL FROM" command.

2) An insufficient length check when copying data with a predefined log message into a buffer using strcpy_s() may result in an unhandled invalid parameter error. This can be exploited to crash the SMTP service (MESMTPC.exe) via an overly long domain name in the "RCPT TO" command.

The vulnerabilities are confirmed in version 4.25 of Standard, Professional, and Enterprise editions. Other versions may also be affected.


Solution:
Apply hotfix ME-10044 or update to version 4.26.

Provided and/or discovered by:
Dmitriy Pletnev, Secunia Research.

Original Advisory:
Secunia Research:
http://secunia.com/secunia_research/2010-112/

MailEnable:
http://www.mailenable.com/Standard-ReleaseNotes.txt
http://www.mailenable.com/Professional-ReleaseNotes.txt
http://www.mailenable.com/Enterprise-ReleaseNotes.txt
http://www.mailenable.com/hotfix/default.asp

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: MailEnable SMTP Service Two Denial of Service Vulnerabilities

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