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TITLE:
DVRHOST Web CMS OCX PdvrOcx Class ActiveX Control Buffer Overflow

SECUNIA ADVISORY ID:
SA28443

VERIFY ADVISORY:
http://secunia.com/advisories/28443/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
DVRHOST Web CMS OCX 1.x
http://secunia.com/product/17188/

DESCRIPTION:
rgod has discovered a vulnerability in DVRHOST Web CMS OCX, which can
be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error in the
PdvrAtl.PdvrOcx.1 ActiveX control (PDVRATL.DLL) when handling
arguments passed to the "TimeSpanFormat()" method. This can be
exploited to cause a stack-based buffer overflow by passing an
overly-long argument to the affected method.

Successful exploitation allows execution of arbitrary code.

The vulnerability is confirmed in PDVRATL.DLL version 1.0.1.25. 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://milw0rm.com/exploits/4903

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About:
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