TITLE:
MailEnable SMTP DNS Lookup Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA12493

VERIFY ADVISORY:
http://secunia.com/advisories/12493/

CRITICAL:
Less critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
MailEnable Professional 1.x
http://secunia.com/product/3474/
MailEnable Standard 1.x
http://secunia.com/product/3882/

DESCRIPTION:
A vulnerability has been reported in MailEnable, which can be
exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error when processing DNS
responses. This can be exploited to crash the SMTP service by
returning a DNS response containing over 100 MX records.

SOLUTION:
Apply hotfix (for Standard 1.71 and later and Professional 1.18 and
later):
http://www.mailenable.com/hotfix/MEW2KDNS.zip

PROVIDED AND/OR DISCOVERED BY:
Reported by vendor.

ORIGINAL ADVISORY:
http://www.mailenable.com/hotfix/

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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:
http://secunia.com/secunia_security_advisories/

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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