A vulnerability has been discovered in Mac OS X, 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 and 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 via Safari 2.0.4 (419.3). Other versions may also be affected.
Solution: Update to Mac OS X v10.4.8 or apply Security Update 2006-006.
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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Subject: Mac OS X WebKit "KHTMLParser::popOneBlock()" Memory Corruption
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