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TITLE:
MailEnable IMAP Service "APPEND" Buffer Overflow

SECUNIA ADVISORY ID:
SA24361

VERIFY ADVISORY:
http://secunia.com/advisories/24361/

CRITICAL:
Moderately critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
MailEnable Professional 2.x
http://secunia.com/product/10625/
MailEnable Enterprise Edition 2.x
http://secunia.com/product/10427/

DESCRIPTION:
mu-b has discovered a vulnerability in MailEnable, which can be
exploited by malicious users to cause a DoS (Denial of Service) or
potentially compromise a vulnerable system.

The vulnerability is caused due to a boundary error in the IMAP
service when processing arguments passed to the "APPEND" command.
This can be exploited to cause a stack-based buffer overflow via an
overly long (greater than 128 bytes), specially crafted string as
argument to the affected command.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is confirmed in version MailEnable Professional
2.37. Other versions may also be affected.

SOLUTION:
Grant access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
mu-b

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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.

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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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