TITLE:
Internet Explorer "object" Tag Memory Corruption Code Execution

SECUNIA ADVISORY ID:
SA19762

VERIFY ADVISORY:
http://secunia.com/advisories/19762/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
Microsoft Internet Explorer 6.x
http://secunia.com/product/11/

DESCRIPTION:
Michal Zalewski has discovered a vulnerability in Internet Explorer,
which can be exploited by malicious people to compromise a users
system.

The vulnerability is caused due to an error in the processing of
certain sequences of nested "object" HTML tags. This can be exploited
to corrupt memory by tricking a user into visiting a malicious web
site.

Successful exploitation allows execution of arbitrary code.

The vulnerability has been confirmed on a fully patched system with
Internet Explorer 6.0 and Microsoft Windows XP SP2. Other versions
may also be affected.

SOLUTION:
Do not visit untrusted web sites.

PROVIDED AND/OR DISCOVERED BY:
Michal Zalewski

ORIGINAL ADVISORY:
Michal Zalewski:
http://lists.grok.org.uk/pipermail/full-disclosure/2006-April/045422.html

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