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TITLE:
Qbik WinGate SMTP Service Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA26412

VERIFY ADVISORY:
http://secunia.com/advisories/26412/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
WinGate 5.x
http://secunia.com/product/334/
WinGate 6.x
http://secunia.com/product/3651/

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

The vulnerability is caused due to a format string error within the
SMTP service when logging error messages. This can be exploited to
crash the WinGate process by sending specially crafted SMTP commands
to the service.

The vulnerability is reported in versions 5.x and 6.x prior to 6.2.2.

SOLUTION:
Update to version 6.2.2.
http://downloads.qbik.com/qbiknz2/downloads/WinGate6.2.2.1137-USE.EXE

PROVIDED AND/OR DISCOVERED BY:
Stephen Fewer, Harmony Security

ORIGINAL ADVISORY:
Harmony Security:
http://www.harmonysecurity.com/HS-A007.html

Qbik:
http://www.wingate.com/news.php?id=50

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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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