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TITLE:
no-brainer SMTP Client "log_msg" Format String Vulnerability

SECUNIA ADVISORY ID:
SA16279

VERIFY ADVISORY:
http://secunia.com/advisories/16279/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
no-brainer SMTP (nbSMTP) 0.x
http://secunia.com/product/5468/

DESCRIPTION:
A vulnerability has been reported in no-brainer SMTP client, which
potentially can be exploited by malicious people to compromise a
vulnerable system.

The vulnerability is caused due to a format string error in the
"log_msg()" function and can potentially be exploited to execute
arbitrary code via a specially crafted string containing format
specifiers.

Successful exploitation requires that the user is tricked into
connecting to a malicious SMTP server.

SOLUTION:
Update to version 1.00.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Niels Heinen.

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
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Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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