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Secunia is proud to announce the availability of the Secunia Software
Inspector.

The Secunia Software Inspector is a free service that detects insecure
versions of software that you may have installed in your system. When
insecure versions are detected, the Secunia Software Inspector also
provides thorough guidelines for updating the software to the latest
secure version from the vendor.

Try it out online:
http://secunia.com/software_inspector/

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TITLE:
Internet Explorer Script Error Handling Memory Corruption
Vulnerability

SECUNIA ADVISORY ID:
SA20807

VERIFY ADVISORY:
http://secunia.com/advisories/20807/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

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

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/details.aspx?FamilyId=3CFC32FC-85CA-4EDA-890D-5E359F5F0019

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

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

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

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

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

PROVIDED AND/OR DISCOVERED BY:
Jakob Balle and Carsten Eiram, Secunia Research.

ORIGINAL ADVISORY:
Secunia Research:
http://secunia.com/secunia_research/2006-58/

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

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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.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
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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