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TITLE:
Internet Explorer "javaprxy.dll" Memory Corruption Vulnerability

SECUNIA ADVISORY ID:
SA15891

VERIFY ADVISORY:
http://secunia.com/advisories/15891/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Microsoft Internet Explorer 6.x
http://secunia.com/product/11/
Microsoft Internet Explorer 5.5
http://secunia.com/product/10/
Microsoft Internet Explorer 5.01
http://secunia.com/product/9/

DESCRIPTION:
SEC Consult has reported a vulnerability in Microsoft Internet
Explorer, which potentially can be exploited by malicious people to
compromise a user's system.

The vulnerability is caused due to the javaprxy.dll COM object being
instantiated incorrectly in Internet Explorer via the object tag.
This can be exploited via a malicious web site to cause a memory
corruption.

Successful exploitation may allow execution of arbitrary code.

The vulnerability has been reported in versions 5.01, 5.5, and 6.0.

SOLUTION:
The vendor recommends setting Internet and Local intranet security
zone settings to "High".

PROVIDED AND/OR DISCOVERED BY:
sk0L and Martin Eiszner, SEC Consult.

ORIGINAL ADVISORY:
Microsoft:
http://www.microsoft.com/technet/security/advisory/903144.mspx

SEC Consult:
http://www.sec-consult.com/184.html

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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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