[SA21271] Safari "KHTMLParser::popOneBlock()" Memory Corruption

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TITLE:
Safari "KHTMLParser::popOneBlock()" Memory Corruption

SECUNIA ADVISORY ID:
SA21271

VERIFY ADVISORY:
http://secunia.com/advisories/21271/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
Safari 2.x
http://secunia.com/product/5289/

DESCRIPTION:
A vulnerability has been discovered in Safari, which potentially can
be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to an error in the
"KHTMLParser::popOneBlock()" function. This can be exploited to cause
a memory corruption via a script element in a div element redefining
the document body.

Successful exploitation may allow execution of arbitrary code.

The vulnerability has been confirmed in version 2.0.4 (419.3). Other
versions may also be affected.

SOLUTION:
Disable JavaScript support.

PROVIDED AND/OR DISCOVERED BY:
PC and XL

ORIGINAL ADVISORY:
http://browserfun.blogspot.com/2006/07/mobb-31-safari-khtmlparserpoponeblock.html

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