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TITLE:
4XEM VatDecoder VatCtrl Class ActiveX Control "Url" Property Buffer
Overflow

SECUNIA ADVISORY ID:
SA29146

VERIFY ADVISORY:
http://secunia.com/advisories/29146/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
4XEM VatDecoder 1.x
http://secunia.com/product/17836/

DESCRIPTION:
rgod has discovered a vulnerability in 4XEM VatDecoder, which can be
exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error in the
VATDecoder.VatCtrl.1 ActiveX control (VATDecoder.dll) when handling
strings assigned to the "Url" property. This can be exploited to
cause a stack-based buffer overflow by assigning an overly long
string to the affected property.

Successful exploitation allows execution of arbitrary code.

The vulnerability is confirmed in VATDecoder.dll version 1.0.0.27 and
reported in version 1.0.0.51. Other versions may also be affected.

SOLUTION:
Set the kill-bit for the affected ActiveX control.

PROVIDED AND/OR DISCOVERED BY:
rgod

ORIGINAL ADVISORY:
http://www.milw0rm.com/exploits/5193

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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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http://secunia.com/about_secunia_advisories/


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