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Internet Explorer Script Error Handling Memory Corruption Vulnerability
Secunia Advisory: SA20807
Release Date: 2006-12-12
Last Update: 2006-12-13
Popularity: 31,164 views

Critical:
Highly critical
Impact: System access
Where: From remote
Solution Status: Vendor Patch

Software:Microsoft Internet Explorer 6.x

Binary Analysis: BA2 :: Available for 1 Credit

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CVE reference:CVE-2006-5579


Description:
Secunia Research has discovered a vulnerability in Internet Explorer, which can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to an error within the exception handling of script errors. This can be exploited to corrupt memory via an HTML document containing specially crafted JavaScript that triggers certain errors simultaneously.

Successful exploitation allows execution of arbitrary code.

Solution:
Apply patches.

Internet Explorer 6 SP1 installed on Windows 2000 SP4:
http://www.microsoft.com/downloads/de...=3CFC32FC-85CA-4EDA-890D-5E359F5F0019

Internet Explorer 6 for Windows XP SP2:
http://www.microsoft.com/downloads/de...=8B321744-B55E-4696-8B2C-B1D31672DA06

Internet Explorer 6 for Windows XP Professional x64 Edition:
http://www.microsoft.com/downloads/de...=8D841D1B-D0B1-46AF-87BD-7DAA8C31AF39

Internet Explorer 6 for Windows Server 2003 (optionally with SP1):
http://www.microsoft.com/downloads/de...=3E3A9693-D21B-4214-A16C-3FC22340E600

Internet Explorer 6 for Windows Server 2003 for Itanium-based systems (optionally with SP1):
http://www.microsoft.com/downloads/de...=9E3F7A2C-BFE1-48C5-8A8A-64A06BCDF219

Internet Explorer 6 for Windows Server 2003 x64 Edition:
http://www.microsoft.com/downloads/de...=F56065CE-6D28-479B-80A7-E04022454DE9

Provided and/or discovered by:
Jakob Balle and Carsten Eiram, Secunia Research.

Changelog:
2006-12-13: Added link to US-CERT.

Original Advisory:
Secunia Research:
http://secunia.com/secunia_research/2006-58/

MS06-72 (KB925454):
http://www.microsoft.com/technet/security/Bulletin/MS06-072.mspx

Other References:
US-CERT VU#599832:
http://www.kb.cert.org/vuls/id/599832


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