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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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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

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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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